Phospholine
二乙氧膦酰硫膽堿
??? 情景例句
why you have so many problems with math.
為什么你在數學方面有那么多問題。
There is a tremendous responsibility involved in raising children.
養育孩子是一樁責任重大的事情。
Really? Oh well, no news is good news.
真的嗎？噢，沒有消息就是好消息。