放声大哭，嚎啕大哭，哀号，哀叹

1. crying loudly, bawling, wailing, lamentation

noun or participle which takes the aux. verb suru intransitive verb noun (common) (futsuumeishi)

哭得泪流满面(无声地)，泪如雨下，哭得稀里哗啦，嚎啕大哭

2. crying one's eyes out (without making noise), breaking into a flood of tears, crying buckets, weeping

noun or participle which takes the aux. verb suru noun (common) (futsuumeishi) intransitive verb colloquial