Perfluamine
全氟三丙烷
??? 情景例句
Crash dieting is not an advisable way to lose weight.
瘋狂節(jié)食可不是減肥的好方法。
May I have him call you back?
要我請他回你電話嗎？
tap water that is too hot to touch can be left to cool and is generally safe to drink.
水管中流出的燙手的水可以留下來冷卻。這種水一般是安全的。