英 [dəˈmeɪn] 美 [doʊˈmeɪn]
n.
(知识、活动的)领域，范围，范畴;(尤指旧时个人、国家等所拥有或统治的)领土，领地，势力范围;域;定义域;区域
复数： domains
记忆技巧：dom 控制 + ain 表物 → 统治的地方 → 领土
例句
I think probably that the laser has not realised the potential that was expected of it in that domain.
我想可能激光在那个领域并没有充分发挥其潜力。
This information should be in the public domain.
这一消息应该为公众所知。
As a cricketer, gymnastics is out of his domain.
他是个板球运动员，体操非其所长。
