propellant
(also propellent), n [C, U]
propelling agent, eg an explosive that propels a bullet from a weapon, a fuel that provides thrust for a rocket, or compressed gas that forces out the contents of an aerosol container 推进剂(如武器的发射火药、 火箭的燃料、 喷雾容器中用以产生压力的压缩气体等).
Those who live in glass houses should not throw stones.
自己有短处,不要揭别人的短处。
Pierre and I borrowed the money and bought the necklace. During the next ten years we both worked day and night to pay back the money we had borrowed. That's why I now look so old. Well, after all these years we've at last paid back all the money.