Normally, we do these things to keep an equilibrium among the different systems of the unconscious, but sometimes it doesn't work.

一般来说，我们会运用这些机制,去维持无意识系统的平衡，但有时防御机制也会不起作用。

耶鲁公开课 - 心理学导论课程节选

Sometimes that doesn't work out as well as we want it to.

有时候它也不会起到我们想要的作用。

关于旧金山的热点 - SpeakingMax英语口语达人

It often doesn't matter, but it sometimes really does.

但是有的时候会很重要。

麻省理工公开课 - 计算机科学及编程导论课程节选

We work hard and sometimes it doesn't come to fruition but today it did.

BBC: Martin Johnson pleased with England after Wales victory

Sometimes it doesn't work, as in the maudlin "Please Don't Call It Love, " with its weepy, sleepy violin.

NPR: Fiction Family Debut Is Delicate And Industrious

They put urgency behind it, and sometimes it doesn't uniquely comport with every word of an intelligence estimate.

CENTERFORSECURITYPOLICY: Center For Security Policy