Alkylene
亚烃基, 烯化, 烷撑
🗣️ 情景例句
I don't think there will be a problem, you can move in straight away.
我认为这没什么问题，你可以马上搬进来。
What will the weather be like tomorrow?
天气将象明天一样吗？
At that time, however, she was not only the largest ship that had ever been built, but was regarded as unsinkable,
当时，这艘轮船不仅是造船史上建造的最大的一艘船，而且也被认为是不会沉没的。