Microdetection
微量测定
🗣️ 情景例句
He is good at getting a point across to people.
他善于让人信服他的观点。
Beard the lion in his den.
老虎头上捉虱；太岁头上动土。
Hello! Could I speak to the headmaster, please?
您好！我能和校长通话吗？