Regioselective
[机] 特定选择的
🗣️ 情景例句
I hope nothing is wrong.
但愿没有事。
I'm working on it.
我正在努力。
What a pity! I'm afraid that if you've lost it , you must pay for it, said Miss Yang.
“真可惜！如果你真的弄丢了，恐怕你得付钱赔偿，”杨小姐说。