Microfloatation
微量浮选
🗣️ 情景例句
I don't know if I can get to sleep.
我不知道我能否睡得着。
Theings past cannot be recalled.
过去的事情无可挽回。
The most economical age to capture an elephant for training is between fifteen and twenty years,
捕捉15至20岁之间年龄的大象进行驯练最为经济。