Floran
[医]氟化钠, ； 氟化亚锡
🗣️ 情景例句
Can I count on you to help me?
我能仰仗你的协助吗？
In my opinion,that's an excellent idea.
按照我的意见,那是一个极好的想法。
She entered the station twenty minutes before the train was due,
在火车进站20分钟前她就进了车站。