Dipropylurea
二丙脲
🗣️ 情景例句
Yes, of course.
是的， 当然。
Maybe we should hold off until we have covered item B on our agenda.
也许我们应该先谈论完B项议题。
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。