er·rat·ic
adjective/ɪˈrætɪk/
/ɪˈrætɪk/
(often disapproving)- not happening at regular times; not following any plan or regular pattern; that you cannot rely on
不规则的；不确定的；不稳定的；不可靠的 - The electricity supply here is quite erratic.
这里的电力供应相当不稳定。 - She had learnt to live with his sudden changes of mood and erratic behaviour.
她已经学会适应他那变幻莫测的情绪和难以捉摸的行为。 - Mary is a gifted but erratic player (= she does not always play well).
玛丽是一名有天赋的运动员，但发挥不太稳定。 - Irrigation measures will be necessary in areas of erratic rainfall.
在降雨不稳定的地区需要采取灌溉措施。 - their increasingly erratic policy decisions
他们越来越反复无常的决策
Oxford Collocations Dictionaryverbs- be
- seem
- become
- …
- extremely
- fairly
- very
- …
Word Originlate Middle English: from Old French erratique, from Latin erraticus, from errare ‘to stray, err’. - The electricity supply here is quite erratic.