He made the accusations without a shred of evidence to back them up.

他提出的指控毫无证据。

Make sure you back up the disk before you turn the computer off.

一定要先复制磁盘, 然后再关电脑。

She is well-intentioned, but her tactless manner tends to get people's backs up.

她倒是一片, 方法不当容易使人生气。

Samphire Starboard lowered fishing nets and pulled them back up full of gurnard, sturgeon, and dentex.

巴奇钦·里波尔多立即撒下鱼网，可是每次网上来的只是些鲻鱼、鲟鱼、利齿鱼，终于，出现了浑抖动着的红鲤鱼。

Well structured wine with soft, smoky, brambly fruit backed up by tobaccoey, vanilla laced oak character flavours.

优良的设计，具有温和的烟熏味和多刺水果味,成熟的橡木味中伴有烟叶和香草的气息。

Ron Artest: Ron-Ron talks tough but usually backs up his boasts with sometimes over-the-top bullyboy tactics.

-阿泰斯：-谈判起来很棘手经常备份有有时超过限制的流氓战术。

Aunt Tranter backed him up, and he was accordingly granted an afternoon for his " wretched grubbing" among the stones.

兰姨妈这次帮了他的忙，于是他获准了一个下午，可以用来去翻弄那些倒霉的石头。

Back planning: Finishing operation to the back of a stereotype or an electrotype after backing up to make it smooth and to the required height.

铅铸版或电铸版在背后所需的刨平和达致标准厚度的工作。