Phosphonoacetone
二氧磷基丙酮
🗣️ 情景例句
I sent the wrong key.
我寄错了钥匙。
What are the principal farm products in this region?
在这个区域的主要的农场产品是什么？
when he knew that he was dying, he made me promise to go on my own.
他知道自己已奄奄一息，于是他要我答应一定单独回故乡一趟。