1. 观察的：observation 观察 | observational 观察的 | observatory 天文台

2. 公共查询·英语单词大全

2. 观察观测的：observantly 机警地 | observational 观察观测的 | observationally 根据观察

3. 观察评论的：main主要的 | observational观察评论的 | prop(电影、戏剧中的)道具

1. (尤指为获取新信息)观察的，观测的
    Observational means relating to the watching of people or things, especially in order to learn something new.

    e.g. ...observational humour...
           依靠观察发掘的幽默
    e.g. The observational work is carried out on a range of telescopes.
           观测工作借助于各种望远镜。

1. relying on observation or experiment

    e.g. experimental results that supported the hypothesis

    Synonym: experimentaldata-based