Bioactivator
生物活性剂
🗣️ 情景例句
It's nice to meet you.
很高兴见到你 。
What time do you start work?
你什么时候开始工作？
We were, however, worried about our nearest neighbors, whose farm was low lying and who were newcomers to the district.
不过，我们很为我们的近邻担心。他们的农场地势低洼，而且他们又新来乍到。