无缘无故的英语是“It is without rhyme or reason”、“for no reason at all”、“for nothing at all”、“neither rhyme nor reason”、“for no good reason”.
例句:
1、他经常无缘无故地发脾气。
He often gets into a temper for no reason at all.
2、我们常常无缘无故地感到忧郁,于是时而就抱怨起天气来。
There's often no reason for feeling blue, so we sometimes blame it on the weather.
拓展:
reason英式发音 [ˈriːzn],美式发音 [ˈriːzn].主要用作名词跟动词,用作名词时译为“原因;理由;解释;正当理由;道理;情理;思考力;理解力;理性”,用作动词时译为“推理;推论;推断;思考;理解”。
词语搭配:
main reason 主要原因
major reason 重要原因
obvious reason 明显的原因
only reason 唯一理由
primary reason 首要原因
例句:
1、For some reason we all have to come in early tomorrow.
出于某种原因,我们大家明天都不得不早点来。
2、This result gives us all the more reason for optimism.
这个结果使我们更有理由保持乐观。