every once in a while

every once in a while
5. every now and then or every now and again or every once in a while or every so often 时常；有时；间或
6. every time
(whenever) 每次；无论什么时候
- Every time I see him he's depressed. 无论我什么时候见到他, 他都很沮丧。
7. every which way<美,加拿大> (everywhere) 到处
(from all sides) 从四面八方；从各个方向
See: every

- 英语>简体中文, 英汉大词典

every once in a while
adv. 间或，偶而，时常

- 英语>简体中文, 英汉化学大词典

every once in a while
adv.
偶尔

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