Ballasts
n. （保持船身稳定的）压舱物( ballast的名词复数 ); 镇定物; 安定; 压舱材料
🗣️ 情景例句
Some music tapes and some blank tapes
带一些音乐带和一些空白带
Deliver not your words by number but by weight.
言不在多，而在有物。
He sent yet another fax informing the journalist that if he did not reply soon he would be fired.
于是他又发了一份传真，通知那位记者说，若再不迅速答复，将被解雇。