英语词汇“unless”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

► if

used to introduce a phrase when something else depends on that action and situation: We’ll have to leave Monday if it snows today. If you wash my car, I’ll give you $10.

► as/so long as

used when saying that something is true only if someone does something or if something happens: Hiking in the mountains is safe as long as you follow some basic rules.

► provided/providing (that)

provided that and providing that mean the same as as long as but are more formal: All students can participate provided that they have their own equipment.

► on condition that

used when saying that something is true only if someone agrees to do something: They offered him the job on condition that he moved to Chicago.

► unless

used when saying what will be true if someone does not do something or if something does not happen: You won’t pass your final exams unless you study hard.

► in case

used for saying what might happen, which someone wants to be prepared for: She did not think it would rain, but she took her umbrella just in case it did.

► even if

used when saying that something will still be true despite another action or situation: Even if we leave now, we’ll still be late.

► whether or not

used when saying that it does not matter if something happens or not, or if something is true or not: Her comments are always interesting, whether or not you agree with what she says.

► or

used for saying what the bad result will be if someone does not do something or if something does not happen: Stop that or I’ll tell Mom.

► otherwise

otherwise means the same as or but is more formal and is used to start a separate sentence: He had better hurry up. Otherwise, we’ll be late.

单词	unless
释义	unlessunless /ənˈlɛs, ʌn-/ ●●● S1 W1 conjunction Etymology ETYMOLOGYunless Origin: 1400-1500 on less than on a lower condition than (1400-1500) Thesaurus THESAURUSused to introduce a phrase when something else depends on that action and situation► if used to introduce a phrase when something else depends on that action and situation: We’ll have to leave Monday if it snows today. If you wash my car, I’ll give you $10. ► as/so long as used when saying that something is true only if someone does something or if something happens: Hiking in the mountains is safe as long as you follow some basic rules. ► provided/providing (that) provided that and providing that mean the same as as long as but are more formal: All students can participate provided that they have their own equipment. ► on condition that used when saying that something is true only if someone agrees to do something: They offered him the job on condition that he moved to Chicago. ► unless used when saying what will be true if someone does not do something or if something does not happen: You won’t pass your final exams unless you study hard. ► in case used for saying what might happen, which someone wants to be prepared for: She did not think it would rain, but she took her umbrella just in case it did. ► even if used when saying that something will still be true despite another action or situation: Even if we leave now, we’ll still be late. ► whether or not used when saying that it does not matter if something happens or not, or if something is true or not: Her comments are always interesting, whether or not you agree with what she says. ► or used for saying what the bad result will be if someone does not do something or if something does not happen: Stop that or I’ll tell Mom. ► otherwise otherwise means the same as or but is more formal and is used to start a separate sentence: He had better hurry up. Otherwise, we’ll be late. 1used when one thing will only happen or be true as long as another thing happens or is true: Don’t call me at the office unless it’s absolutely necessary. Unless we raise some extra money, the theater will close.► see thesaurus at if12not unless a)used as a reply to a question, when you mean “only if”: “Will you go with her?” “Not unless she wants me to.” b)used after negative statements to mean “unless”: There were no jobs there either, not unless you had a college degree. [Origin: 1400–1500 on less than on a lower condition than (1400–1500)]WORD CHOICE: unless, if ... not• Unless and if ... not can both be used to say that what happens depends on something else happening: She’ll die unless the doctors operate immediately. She’ll die if the doctors do not operate immediately. Unless Troy is stupid, he’ll understand. If Troy is not stupid, he’ll understand.• You can also use if ... not (but not unless) to say what might have happened: She would have died if the doctors had not operated immediately (=but they did operate). If Troy weren’t so stupid he would understand (=but he is stupid).
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