She has bad sight.

她视力差。

youdao

He did not however, enter immediately, and Mrs Durbeyfield said that she would break the bad news to him herself, Tess keeping out of sight for the present.

但是他没有立即走进来，德北菲尔德太太说她自己可以把这个不幸的消息告诉他，要苔丝先不要见她父亲。

youdao

So it's easy to confuse its condition (bad) with its direction (better) and to lose sight of how much worse it could be.

因此，很容易将(坏的)现状和(好的)方向混为一谈，并且忽视情况变得更坏的程度。

youdao

Like many writers with the apocalypse (good or bad) in mind, they also lose sight of context.

FORBES

If that was bad enough for the watching Johnson, the sight of Giteau motoring onto an overthrown line-out and into wide open spaces would hardly have brightened the England manager's mood.

BBC: England 14-28 Australia

So that all of those in their sight, in their calculations, is actually not a bad thing.

NPR: The Nuclear Debate from Iran's Viewpoint