Ertalyte
聚酯 经济的放射性同位素热电能源
🗣️ 情景例句
I don't know haw that could have happened.
我不知道怎么会发生那样的事。
To conduct an orchestra
指挥交响乐
Let me see. Oh dear! Yes, it is broken.
让我看看，天哪！是坏了。