窗帘几乎是透明的。

The curtains are almost ___sheer.

我们沿着几乎垂直的悬崖边小心翼翼地前进。

We carefully walked along the ___sheer edge of the cliff.

这座山的高度令人惊叹。

The ___sheer height of the mountain is breathtaking.

她能通过考试纯粹靠运气。

She passed the exam through ___sheer luck.