lower one's head in thought; bend one's head and try hard to remember; with a bowed head in deep thought (又作“低头沉思”)
Related Translations:
低头: 1.(垂下头) lower one's head; bow one's head; hang one's head 短语和例子低头默哀 bow one's head in silent mourning2.(比喻屈服) yield; submit 短语和例子决不向困难低头 never bow to difficulties
低头认罪: bend one's head in acknowledgment of one's guilt; admit one's crimes; hang [bow] one's head and admit one's guilt; make a full admission of one's guilt; plead guilty