Backfill
vt. 装填, 回填\\nn. 装填, 回填
🗣️ 情景例句
A cookie can't hurt, though.
但一片小甜饼不要紧。
By falling we learn to go safely.
吃一堑，长一智。
She struck the keys too hard and two of the strings were broken.
她在击琴键时用力过猛，损坏了两根琴弦。