Allylene
(=methylacetylene)丙炔, 甲基乙炔
🗣️ 情景例句
Look before you leap.
想好了再行动。
It says a storm may come next month.
天气预报说下个月会有一场暴风雨。
My cousin, Harry, keeps a large curiously-shaped bottle on permanent display in his study.
我的堂兄哈里在他的书房里一直摆着一只形状古怪的大瓶子。
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