Alkide
烃基化物, 烷化物
🗣️ 情景例句
But if I have my tonsils out tomorrow,
但是我如果明天切除扁桃腺，
They are looking forward to the summer vacation.
他们正盼望着暑假的来临。
Yes, Mom! I'll do it right away.
听到了，妈妈！我这就去。