Clide
放射性核素浓度
🗣️ 情景例句
Floors one to eight are the elevators to the left.
一到八楼上下使用的电梯在左边。
It would help if you could try to speak a little slower.
请你尽量放慢说话速度。
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。