They had no other option but to clean the tunnel but only the parts Alexandre had already cleaned.

他们别无选择，只能清理隧道，但只清理亚历山大已经“清理”过的部分隧道。

youdao

It's worth remembering, however, that though a clean copy fresh off a printer may look terrific, it will read only as well as the thinking and writing that have gone into it.

然而，值得记住的是，尽管刚从打印机上打印出来的干净复印件看起来很棒，但它的阅读效果和里面的思考书写效果一样好。

youdao

For a long time biologists believed that male deer used buck rubs not only to clean and polish antlers but also to provide practice for the ensuing male-to-male combat during the rut.

长期以来，生物学家们认为雄鹿擦痕不仅可以清除并磨光鹿茸，还可以借此练习发情期时雄鹿之间的角斗。

youdao

People can also cause a blockage when they try to clean out their ears, but only push the wax deeper inside.

VOA: special.2010.03.31

You cannot just tell the computer to enhance that or can you clean that up and then magically use zoom in not only on the image but also on the reflection of the victim in someone's eyeball.

你不能直接要求计算机增强,这张图片或者修复它,然后期待计算机很神奇地放大图片,以及死者的眼珠的反光。

哈佛公开课 - 计算机科学课程节选

It is exciting to stand only a few meters away and watch scientists clean the asphalt off a fossil that is thousands of years old.

VOA: special.2010.04.07

The measure of Mr Bush's failure to tackle this issue seriously is his continued rejection of the only two clean and efficient solutions to climate change.

ECONOMIST: Climate change

Needless to say, the U.S. is not the only country pursuing the clean-energy prize.

FORBES: Clean Energy Exports? Think Energy Audits, Not Solar Panels

But the only way the transition to clean energy will ultimately succeed is if the private sector is fully invested in this future -- if capital comes off the sidelines and the ingenuity of our entrepreneurs is unleashed.

WHITEHOUSE: Moving Forward on a New Foundation