Knees should be flat.

膝盖应该是平面的。

youdao

Believed to be flat, the earth was never conquered by human beings.

以前人们认为地球是平的，所以人类从未征服过地球。

youdao

Overall capacity is expected to be flat year on year.

总体库存水平预计与去年同期持平。

youdao

It can be flat or raised.

VOA: special.2010.07.06

This tube, this hollow tube, which food passes through is made up of many, many epithelial cells which directly abut one another and would be a flat sheet except that it's rolled up into a tube.

这个管道,这个中空的管道,食物可以穿行其中,而它就是由许多许多上皮细胞构成的,上皮细胞一个连着一个,形成了一个平坦的细胞层,但实际上它们还在肠管中卷成管状

耶鲁公开课 - 生物医学工程探索课程节选

We'll be in the key of E-flat.

用降E调

耶鲁公开课 - 聆听音乐课程节选

Profits this year are likely to be flat but will gather strength going into 2009.

FORBES

Wal-Mart had a particularly feeble month and expects sales to be flat in November.

ECONOMIST: America's economy

The company expects same store sales to be flat or decrease up to 3% this year.

FORBES: Best Buy's Mobile Business Drives Up Interest In Stock