Backfill
vt. 装填, 回填\\nn. 装填, 回填
🗣️ 情景例句
She must like you and your work, Marilyn.
她一定是喜欢你和你的工作， Marilyn。
Forget it!
算了！
Thus the rods, by falling, and by the direction in which they fell,
木棒倒下的多少和倒下的方向