Coliformin
类大肠杆菌素
🗣️ 情景例句
Take care on your way back.
回程保重了。
Do you like traveling?
你喜欢旅游吗？
In the light of this statement, teachers live by selling knowledge,
根据这种说法，教师靠卖知识为生，哲学家靠卖智慧为生，