Diastereoisomeride
非对映异构体
🗣️ 情景例句
I planned to take you for a ride in Central Park
我原打算带你去中央公园
May I speak to your boss?
我想和你们的老板讲话好吗？
I will speak against anything I know to be wrong.
我会对所有我认为不对的事情直言不讳。