Ac.
[医] 锕(89号元素)
🗣️ 情景例句
It's a serious matter for a lot of us.
对我们许多人来说这可是个严重的问题。
It is one thing to speak much and another to speak pertinently.
话讲得多是一回事，讲得恰当是另一回事。
Sorry I am late. The car broke down.
抱歉我晚了，车坏了。