进宫
to enter the emperor's palace; (slang) to go to jail
进攻
to attack; to assault; to go on the offensive; attack; assault; offense (sports)
进贡
to offer tribute; to pay tribute that a vassal owes to his suzerain
矜功不立
boasts a lot, but nothing comes of it (idiom)
鸟尽弓藏
lit. the birds are over, the bow is put away (idiom); fig. to get rid of sb once he has served his purpose