beat one's breast and shed tears of blood

be in an impasse; be up against the wall; come to the end of one's tether; have no way out

sort out silk threads improperly only to tangle them further--do something which only makes matters worse

Sit in silence

Suffer a crisis

Meet with the sports meet

Feel tongue-tied

exactly equal in weight(have the same weight)

Make frequent changes in policies or measures

ephemeral(birth in the morning and death at night)

Chinese and Western

Being contented with one's lot, one will not be disgraced by others for it

conjured

autolatry(self-worship)

grasp the key link

ability to appreciate a person's character and capability

know inside out

stare in anger(stare blankly)

repeatedly(time and again)

to act with integrity