Remember that sand, water and snow reflect sunlight and make it even more important to use sunscreen.

记住沙子、水和雪都会反射太阳光，这使得抹防晒霜更为重要。

youdao

Too many golfers try to bash the ball out of sand. That spells disaster.

太多打高尔夫球的人试图把球胡乱打出沙坑。那就意味着灾难。

《柯林斯英汉双解大词典》

The "Empty Quarter" is a huge area of sand that covers about a quarter of the Arabian Peninsula.

“空白之地”是一大片沙地，覆盖了四分之一的阿拉伯半岛。

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For example, lightning can create tubes of glass when it strikes sand that has the right combination of minerals.

VOA: special.2009.09.16

He turned this way and that, and, seeing no one about; he struck down the Egyptian and hid him in the sand.

他左右观看，见没有人;,就把埃及人打死了，藏在沙土里。

耶鲁公开课 - 旧约导论课程节选

There is something that one might be able to hold on to: the knob of something, the little flame of something that ; The grain of sand. -The grain of sand; but there is really not a decent metaphor for it, I think.

一个你可以依靠的支点：,一个不同寻常的想法，一个思想的小火花,就像一粒沙中看世界，-一粒沙中看世界;,不过我认为任何比喻都不够贴切。

普林斯顿公开课 - 人性课程节选

Now, given his post-election lines in the sand, he wants to rub that sand in.

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Dig up, suck up, that sand and silt then separate the heavier cassiterite from the lighter sand and silt.

FORBES: After Conflict Minerals Comes The Death Metal: Tin. And It's Apple's Fault Again.

But we need to realize that ultimately we cannot build our house upon that sand, that fundamentally it has so many problems.

CENTERFORSECURITYPOLICY: Center For Security Policy