Alkylene
亚烃基, 烯化, 烷撑
🗣️ 情景例句
Bon Voyage!
旅途愉快！
Would you mind if I opened the window?
我开窗，可以吗？
It's very difficult to see where we're going and the shower may pass in an hour or two. Let's rest and have some food.
“现在很难看到我们要去的地方。阵雨可能一两个小时就会过去，我们休息一下吃点东西。”