D-l
[医][=dextro-levo]右旋-左旋
🗣️ 情景例句
I have worked hard at my major subject.
我对主修课特别用功。
Fill it up with regular, please.
请加满普通汽油。
Good evening! Mr Green, where are you from?
晚上好，格林先生，你是哪里来的？