Pentacontane
五十烷
🗣️ 情景例句
We haven't had any complaint of this kind. Is there any evidence.
我们还从未听过这样的抱怨。有什么证据呢？
Will you please call me back?
请你回我一个电话好吗？
Good! Do you like working in China?
很好，你喜欢在中国工作吗？