Backfill
vt. 装填, 回填\\nn. 装填, 回填
🗣️ 情景例句
He needs to work.
他需要工作。
He is too lazy to move but luckily he has strong toes.
他虽然懒惰得不肯动，但是幸而有强壮的脚趾。
In fact a basic amount of movement occurs during sleep which is specifically concerned with preventing muscle inactivity.
事实上，睡眠状态下仍有着基本的活动量，以防止肌肉活动停止。