词汇 | laughing gas |
释义 | laughing gas noun [ U ] informal uk/ˈlɑː.fɪŋ ˌɡæs/ us/ˈlæf.ɪŋ ˌɡæs/ 笑氣,一氧化二氮(一种用作麻醉剂的气体) nitrous oxide specialized : a type of gas that is used as an anaesthetic (= a substance that stops pain) |
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