Ept
[化] 三元乙丙橡胶; 乙丙三元橡胶
🗣️ 情景例句
I don't have the heart to tell her.
我没有勇气告诉她。
Is the distribution of wealth uneven in your country?
在你们国家财富分配得均匀吗？
That's easier said than done!
说来容易做起来难哪！