Rufol
[化] 1,5-二羟基蒽
🗣️ 情景例句
Don't be so miserable!
别这愁眉苦脸的。
We're in competition with several other companies for the contract.
我们与另外几家公司逐争取这个合同。
Good! Do you like working in China?
很好，你喜欢在中国工作吗？