Certation
花粉管竞生
🗣️ 情景例句
Drop the gun, or I'll shoot.
扔掉枪， 不然我就开火了。
Is there anything I can explain fully?
有什么事情要我详细说明的吗？
He waited until the volcano became quiet and he was able to return two days later.
他等到火山平静下来，两天以后又返回去。