| 释义 |
laughing gas WordReference English-Chinese Dictionary © 2019:主要翻译英语中文laughing gas nnoun: Refers to person, place, thing, quality, etc. (nitrous oxide)笑气 xiào qì 一氧化氮 yì yǎng huà dàn Dentists frequently use "laughing gas" to calm patients prior to treat |