Ballasting
n. 压舱材料, 道碴材料
🗣️ 情景例句
Susan called early this morning. Susan
一大早打电话来。
Every bird likes its own nest.
人爱其家。
Their sleeping bags were warm and comfortable, so they all slept soundly.
睡袋既暖和又舒服，所以，他们都睡得很香。