To be very close friends
成为非常亲密的朋友 (chengwei feichang qinmi de pengyou)
"They've been thick as thieves ever since childhood."
"他们从小就是非常要好的朋友。" (tamen congxiao jiushi feichang yaohao de pengyou)
to have ambitious goals and aspirations
to relax your vigilance or become less careful
raining very heavily
Endure a difficult situation until it improves.
to do something revolutionary or extremely difficult
something will happen eventually; be patient