Microdetection
微量测定
🗣️ 情景例句
This community has always been very generous.
这个社区一向是非常慷慨的。
You'll hurt your arm, if you don't take care.
你不专心的话，就会伤到你的手指。
He had had a long and uncomfortable trip, for he had been confined to the wooden box for over eighteen hours.
他经历了一次漫长而又难受的旅程，因为他在那木箱里闷了18个多小时。