earth motion

• 地

earth motion的用法和样例：

例句

1. The floor of the hut was of trodden-down red earth.
   棚屋的地是踏得很平实的红土。
2. The Richter Scale is a measure of ground motion.
   里氏震级是测量地动的单位。
3. The earth beneath her feet was uneasy.
   她脚下的地面也是摇摇欲动的。
4. He pulled the lever and set the machine in motion.
   他扳动操纵杆，启动了机器。