| 释义 | 
		biff1 verbbiff2 noun biffbiff1 /bɪf/ verb    biffOrigin: 1800-1900 Probably from the sound of hitting  VERB TABLEbiff |
 | Present | I, you, we, they | biff |   | he, she, it | biffs |  | Past | I, you, he, she, it, we, they | biffed |  | Present perfect | I, you, we, they | have biffed |   | he, she, it | has biffed |  | Past perfect | I, you, he, she, it, we, they | had biffed |  | Future | I, you, he, she, it, we, they | will biff |  | Future perfect | I, you, he, she, it, we, they | will have biffed |  
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 | Present | I | am biffing |   | he, she, it | is biffing |   | you, we, they | are biffing |  | Past | I, he, she, it | was biffing |   | you, we, they | were biffing |  | Present perfect | I, you, we, they | have been biffing |   | he, she, it | has been biffing |  | Past perfect | I, you, he, she, it, we, they | had been biffing |  | Future | I, you, he, she, it, we, they | will be biffing |  | Future perfect | I, you, he, she, it, we, they | will have been biffing |  
    1[transitive] old-fashioned informal to hit someone hard with your fist  SYN  thump:   He biffed me on the nose.2[intransitive] informal to fall or hit something when riding a bicycle, snowboard etcbiff1 verbbiff2 noun biffbiff2 noun [countable] informal     an embarrassing mistake |