Microdetection
微量测定
🗣️ 情景例句
I haven't seen you for a long time.
很久没见了。
He has lived here for a year.
他在这里住了一年了。[表示持续到现在的行为]
We must stress that these payment terms are very important to us.
我们必须强调这些付款条件对我们很重要。