Polyyne
聚炔烃
🗣️ 情景例句
You're right. I'll change it.
你说得对，我会把它改一下。
If the old dog barks,he gives counsel.
老狗叫，是忠告。
When my wife nagged me to do something about it,
妻子喋喋不休让我想点办法。