Epoxybutane
氧化丁烯
🗣️ 情景例句
I'd like to give her a nice going-away present.
我很想送给她一件好的离别礼物。
A person must strain one's ears to hear a wild animal in the forest.
在森林里，人类必须对野兽竖起耳朵才行。
It's very thoughtful of you.
你想得真周到。