Ultramicrosampling
超微量采样
🗣️ 情景例句
Let's see.
让我想想。
Life without a friend is death without a witness.
在世无朋友，死后无证人。
The officer unscrewed the cap and put the bottle to his nostrils.
海关官员拧开瓶盖，把瓶子放到鼻子底下。