fluid
adj
1 able to flow freely, as gases and liquids do; not solid or rigid 流动的; 流体的; 不坚硬的: a fluid substance 流体.
2 not fixed; able to be changed 不固定的; 可改变的
fluid arrangements, ideas, opinions 可改变的安排、 思想、 意见
The situation is still fluid. 局势尚不稳定.
3 smooth and graceful in movement 动作灵活而优美的. fluid, n [C, U]
1 any liquid substance 液体: Drink plenty of fluids 多喝流质.
There´s some sort of sticky fluid on the kitchen floor. 厨房的地上有一种发黏的液体.
2 (chemistry 化) fluid substance 流体; 液.