Peptimycin
肽霉素
🗣️ 情景例句
An apple a day keeps the doctor away.
每天一个苹果不用看医生。
Can I cancel this ticket?
我可以取消这张票吗？
Tricycles are lined up on the floor of the pool seven feet under water.
三轮车并排放在7英尺深的游泳池底上。