liquid
单词辨析：
普通用词，指水、牛奶、油等液态物体。
Water is liquid, so is milk.
水是液体，牛奶也是液体。
If you add too much liquid, the mixture will not be thick enough.
如果加入的液体太多，混合液的浓度就不够。
指流动的或具有流动性的物体，可以是液态的，也可以是气态的。
the brake/cutting/seminal fluid
制动液/切削液/精液
Air whether in the gaseous or liquid state is a fluid.
空气，无论是气态的还是液态的，都是一种流体。
相关例句：
Boil the liquid in a small saucepan to reduce it by half
用小炖锅炖，收一半汤汁。
Soak a small towel in the liquid, wring it out, then apply to the abdomen.
将一块小毛巾浸在液体中，拧干后敷在腹部。
The liquid is then diluted
然后液体被稀释。
It is like the sense of chill that follows immersion of the hand in a volatile liquid.
这很像把手浸入挥发性液体后的那种凉飕飕的感觉。
Liquid waste flows out from some factories into the sea.
有些工厂将生产废水向海中倾泻。
Boil for 20 minutes until the liquid has reduced by half
煮20分钟，直到液体体积减半。