Clide
放射性核素浓度
🗣️ 情景例句
Thank you.
谢谢你们。
Our project must proceed at a reasonably quick tempo. Surely one month is ample time, isn't it?
这个计划必须尽速进行。一个月的时间应该够了吧？
Can we substitute in these things?
这几项可以用替代品吗？