视力

Some are eyeless; others retain some sight.

有些是没有眼睛的，其他的仍然保留了一些视力。

The eyeless sea urchin also has genes associated with taste, smell, hearing, balance— and surprisingly, even vision.

这种目盲的海胆同样有着与味觉、觉、觉和平衡相关的基因－至，令人吃惊地是，还包括视力。

Children with lazy eye typically spend a few hours a day wearing an eyepatch over the normal eye to encourage the brain to engage with the affected eye, although this treatment is rarely continued beyond about the age of 9, when the visual cortex is generally thought to be fully developed.

一般来说，弱视儿童戴眼罩的时间要比那些视力正常的儿童长几个小时，以此来刺激大脑与受过影响的眼睛形成联系。虽然如此，但这种治疗一般不会在超过九岁后仍继续进行，因为这时的视觉皮层被普遍认为已经发育成熟。

But do you know how to protect your eyesight?

但是，你知道怎样保护你的视力吗？

You see, I have poor eyesight .

你知道，我的视力不好。

It is important for everyone to keep good eyesight.

保持好的视力对每个人来说是很重要的。

If you don't take care of your eyesight,you will go blind.

如果你不注意保护视力的话，你会变瞎的。

I don't think there is any other people who goes into your eyesight in such a way.

我不认为有任何其他人谁进入你的视力在这样一种方式。

He said, 'I don't know, but your eyesight is perfect.'

他说'我不知道，不过你的视力是再正常不过了'。

How to Protect Your Eyes It is important for everyone to keep good eyesight.

保持好的视力对每个人来说是很重要的。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。