Alkylene
亚烃基, 烯化, 烷撑
🗣️ 情景例句
We aren't going, for the simple reason that we can't afford it.
我们不去，原因很简单，我们负担不起。
If nobody loves you, be sure it is your own fault.
如果没有人爱你，肯定是你自己有问题。
You're not busy doing anything, are you?'
你不忙，是吗？”