Tfe
[医][=trifluoroethanol]三氟代乙醇
🗣️ 情景例句
May I make an appointment now?
现在可以预约门诊吗？
She began playing the violin when she was nine.
她从九岁就开始练习小提琴。
I have a headache, and she has a stomachache.
我头疼，她胃疼。