Mesothoriumii
[化] 新钍II; 228Ac
🗣️ 情景例句
Yes, indeed.
是的 ，原来如此。
The years teach much which the days never know.
学问集年而成，而每日不自知也。
She told reporters she felt very tired and didn't want to make another film for a long time.'
她告诉记者她感到很疲劳，早就不想再拍电影了。