1. 负有义务的艰巨的：onerous property 负有义务的财产 | onerous 负有义务的;艰巨的 | onerous 负有义务的艰巨的

2. onerous在线翻译

2. 繁重的：Ombudsman 调查官员舞弊情况的政府官员 | Onerous 繁重的 | Optimal 最好的

3. 繁重的;负有法律责任的：Mundane 世俗的,庸俗的 | Onerous 繁重的;负有法律责任的 | Incisive 锐利的,尖锐的,深刻的

4. 繁重的、麻烦的：cantankerous 脾气坏的,好争吵的 | onerous 繁重的、麻烦的 | obstreperous 吵闹的,难管束的

1. （任务）繁重的，艰巨的，麻烦的
    If you describe a task as onerous, you dislike having to do it because you find it difficult or unpleasant.

    e.g. ...parents who have had the onerous task of bringing up a very difficult child.
           曾经辛辛苦苦地养育过任性难缠的孩子的父母亲