Fd50
[医] 半数致死量
🗣️ 情景例句
and you care about us,
而且关心我们大家，
Edward had heard of the famous singer from Europe.
爱德华曾听说过欧洲出身的著名歌星的事。
The first settlers on the plains of America were Native Americans.
美洲平原上的首批定居者是美洲土著人。