I'm afraid it's a rather long story.

我恐怕这是个相当长的故事。

《柯林斯英汉双解大词典》

It was a soft thing with a darling silly baby face and legs rather long for its body.

这是一个软软的小东西，长着一张傻乎乎的、可爱的娃娃脸，腿相比身体来说很长。

youdao

Two little old ladies were attending a rather long church service.

两个小老太太在教堂做礼拜，很久都不结束。

youdao

He says circumstantial evidence indicates the launch involves a long-range missile rather than a satellite.

VOA: standard.2009.03.12

But rather, the best thing I suppose would be to be able to live as long as you wanted.

我想最好的情况,是想活多久就能活多久。

耶鲁公开课 - 死亡课程节选

Now, rather than go through this again and again, because frankly you can probably see where this goes before long we're gonna hit some problems.

现在，不是一次又一次做这些了，坦白说，你也许可以看到,我们马上要遇到一些问题。

哈佛公开课 - 计算机科学课程节选

They're showing off a rather long, elaborate demo of Dead or Alive 4 for the 360.

ENGADGET: & Joystiq's live coverage of Microsoft's Xbox 360 E3 event

The races are rather long, and you'll need to take breaks often just to rest your shoulders.

CNN: Review: The Force proves weak in 'Kinect Star Wars'

If you are going to grow it, it is a rather long-season plant, clocking in at about 112 days from seeding.

NPR: The Vegetable World's Ugly Duckling: Celeriac