不厌其烦bù yàn qí fán

be very patient; go out of one’s way to; painstakingly; not mind taking (all)the trouble; spare no trouble (/pains); take great pains
❍ 周恩来同志长时间～的解说和析理入微的言词，对他们如同拨开重重迷雾见到了晴天。(《敬爱的周总理我们永远怀念您》Ⅱ—41) Comrade Zhou Enlai’s patient,long-term explanation and incisive analysis seemed to help these officers to clear away the heavy fog and see the serene sky.

• female
• fence
• fencing
• festival
• fetch
• fever
• few
• fiber
• fiberglass
• fibre
• fiction
• fictional
• field
• fifteen
• fifteenth
• fifth
• fifty
• fight
• fight for
• fight over
• figure
• figure out
• file
• fill
• fill out