Qms
[化] 四极质谱仪
🗣️ 情景例句
Maybe you can photogragh a class,
也许你来拍一次上课的情形，
Her socks is under the night stand.
她的短袜在床头柜下面。
Fifteen policemen had to push very hard to get him off the main street.
15个警察不得不用很大的力气把它推离主要街道。