Tfe
[醫][=trifluoroethanol]三氟代乙醇
??? 情景例句
and I promised to have lunch with both of them today.
我答應今天和他們共進午餐。
Why Mr. Cooper so tired?Do you have any idea?
為什么庫珀先生這樣疲倦的?你有想法嗎？
Just relax.
放松一下。