to succeed in doing something difficult
成功完成某项困难的事情 (chenggong wancheng mouxiang kunnan de shiqing)
"No one thought she could do it, but she pulled it off."
"没有人认为她能做到，但她做到了。" (Meiyou ren renwei ta neng zuodao, dan ta zuodao le.)
threatening military action to intimidate others
to reach maturity; to become fully developed
to be conflicted or struggling internally
to wish someone good luck in a performance
to reduce or eliminate feelings of anxiety or pressure
a criminal case that has not been solved for a long time
