Underfilling
不[未充]满, 底层填料
🗣️ 情景例句
it's exactly as it was when we were married!
它跟我们结婚的时候一模一样！
The greatest hate springs from the greatest love.
最大的恨产生于最大的爱。
He had had a long and uncomfortable trip, for he had been confined to the wooden box for over eighteen hours.
他经历了一次漫长而又难受的旅程，因为他在那木箱里闷了18个多小时。