不褪色的

fast(adjective)

(of a dye) fixed; that will not come out of a fabric when it is washed.

快速移动的

fast(adjective)

quick-moving

固定的

fast(adjective)

firm; fixed

动作迅速的

fast(adjective)

quick

偏快的

fast(adjective)

(of a clock, watch etc) showing a time in advance of the correct time

快

fast(adverb)

quickly

She speaks so fast I can't understand her.

禁食期

fast(noun)

a time or act of fasting

She has just finished two days' fast.

禁食

fast(verb)

to go without food, especially for religious or medical reasons