Hitab
噪声和背景信号的测定靶
🗣️ 情景例句
You haven't been around much lately.
最近你在家的时候不多。
Your work seems not satisfactory.
你的工作看起来并不令人满意。
from which can be seen the strata the drill has been cutting through.
从中能看出钻头所钻透的地层。