onceinawhile与occasional,attimes,sometimes的区别

Question

once in a while 与occasional,at times,sometimes的区别

Answer 1

1.once in a while
有时
He went to see them once in a while.
他有时去探望他们.
2.occasional
偶尔的,非经常的
She likes an occasional glass of wine.
她喜欢偶尔喝杯酒.
He pays me occasional visits.
他偶尔有时,间或
3.at times,
不时
Everyone may make mistakes at times.
每个人不时都会犯错误.
4.sometimes
有时,间或
It is sometimes warm and sometimes cold.
天时热时冷.
She comes to visit us sometimes.
她有时来访问我们.
可见这4个词只有细微的差别,可通用