Merphalan
消旋苯丙氨酸氮芥
🗣️ 情景例句
She was playing with the idea of studying abroad.
她有出国留学的念头，但并非很认真。
When am I supposed to check in?
我应该在什么时候到机场办理手续呢？
Why vinegar, Sir, if I may ask?
先生，要是我能问的话，您为什么要带醋呢？