Phosphonoacetone
二氧磷基丙酮
🗣️ 情景例句
Do you have any friends in the import or export field?
你有在进出口领域工作的朋友吗？
It's a poor mouse that has only on hole.
鼠只有一洞，必先把命送。
A little. I go to Chinese classes every week.
一点点，我每周去汉语班上课。