R48
[医] 双-2-氯乙基-β-萘胺
🗣️ 情景例句
Don't park your car in a dark street.
不要把车停在黑暗的街道上。
May I ask you how old you are?
我能问你多大了吗？
Before? After? said the doctor.
“饭前？饭后？”医生说。