Electricity in Sanaa has been sporadic, sometimes off for as long as two days at a time during the past few weeks.

而萨那正处于间歇性停电，在过去的几周内，有时一次停电甚至会持续长达2天的时间。

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Traditional teaching methods sometimes only succeeded in putting students off learning.

传统的教学方法有时只会使学生们厌学。

《柯林斯英汉双解大词典》

The plant's leaves can often turn brown, and I sometimes cut off the worst offenders.

那种植物的叶子常会变成褐色，我有时会把最有问题的剪掉。

《柯林斯英汉双解大词典》

We also say that sometimes a person cuts off his nose to spite his face.

VOA: special.2009.09.13

When you hear a slaveholder preach about his individual liberty and his rights, you sometimes wonder, "Come on, where do you get off?"

当你听见一个奴隶主鼓吹,他的个人自由和他的个人权利时,你有时候会想,"拜托,你是怎么做的呢"

耶鲁公开课 - 美国内战与重建课程节选

Sometimes you get data that throw you off.

有时候你们得到一些你们认为无用的数据。

麻省理工公开课 - 固态化学导论课程节选

But the quirky executive maintained his trademark (if sometimes off-putting) sense of humor to the last.

FORBES: 'I Was Fired' -- Here's That Refreshingly Honest Farewell Memo From Groupon CEO Andrew Mason

In our tests, exposure was spot on and low-light performance was spectacular -- white balance, despite being usually accurate, was sometimes off when snapping photos in artificial light (like under fluorescents).

ENGADGET: Nokia 808 PureView review: the future of mobile imaging, wrapped in the smartphone past

Fashion is clothing that evolves, and sometimes climbs out on a ledge (and sometimes jumps off).

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