Phosphonoacetone
二氧磷基丙酮
🗣️ 情景例句
I'm trying to catch Mary, please.
我想与Mary联络。
We can't decide what to do.
我们不能决定怎么做。
George took off his jacket, rolled up his sleeves and pushed is right arm through the drain cover.
乔治脱掉外套，卷起袖子，将右胳膊伸进了阴沟盖。