Mesothoriumii
[化] 新钍II; 228Ac
🗣️ 情景例句
Turn the key before you pump the pedal, or you'll flood the engine.
加水之前转动钥匙，要不发动机就给浇灭了。
There's TV coverage of the NBA tournament.
有个NBA联赛的电视报道。
It's my watch.
是我的手表。