Propylacetylene
[化] 戊炔; 丙基乙炔; 1-戊炔
🗣️ 情景例句
You really must have your wits about your when dealing with such people.
跟这类人打交道，你必须格外警觉。
I can't move.
我走不动了。
This morning, however, a firemen accidentally discovered the cause.
然而今天上午，一个消防队员偶然发现了起火的原因。