| 单词 | laughing gas |
| 释义 | laughing gas ˈlaughing ˌgas noun [U] INFORMAL ► F0 NITROUS OXIDE(Cf. ↑nitrous oxide): a type of gas that is used as an anaesthetic (= a substance that stops pain)Thesaurus+: ↑SurgeryThesaurus+: ↑Specific chemicals, chemical compounds and gases , ↑Substances and structures in the body , ↑Types of chemical |
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