抱头恸哭: hold one's head and weep bitterly -- in deep distress; cry in one another's arms; embrace each other and cry bitterly; embrace one's head and wail [weep]; hang on sb.'s neck and weep out;
抚尸恸哭: cry over sb.'s remains [body]; weep over the corpse; weep bitterly over sb.'s corpse; stroke the corpse and cry bitterly
伏尸恸哭: wail over the corpse; weep over sb.'s remains
抚棺恸哭: break into loud lamentations with one's hand on the coffin; weep with hand stroking the coffin