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
Don't move! Get down on the floor.
别动！趴到地上！
It was not very wise of you to sell the property.
你把物业卖了可不是办法。
Will you come and join us for dinner on Sunday?
星期天来和我们共进晚餐好吗？