Difference measurement
[计] 差分测量
🧩 词语组成解析
🗣️ 情景例句
kick off your shoes, and sit down.
脱掉你的鞋子， 坐下来。
In case of fire, keep your head.
万一发生火灾，保持镇定。
Rescue workers are therefore drilling a hole on the north side of the mine.
因此，营救人员在矿井的北侧钻了一个洞。