1 unburden yourself/sth (of sth) (to sb) (formal 正式) to talk to sb about your problems or sth you have been worrying about, so that you feel less anxious 倾诉；诉说；诉苦: She needed to unburden herself to somebody. 她需要找个人诉诉心里的苦衷。She unburdened herself of her feelings of guilt. 她倾吐了心中的内咎感。

2 unburden sb/sth (of sth) to take sth that causes a lot of work or worry away from sb/sth 给…解除﹙负担﹚；为…分忧