Dipel
苏云金杆菌
🗣️ 情景例句
I need to fit a fourth operation into his schedule.
我得在他的工作表上再加第四个手术。
Have you seen Mr. Smith recently?
最近你见过史密斯先生吗？
Two years later, her father disappeared, never to be heard from again.
两年后，她父亲失踪了，从此再无音讯。