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1·We must look up and down first.

首先，我们必须上下看看。

2·As his feet had outgrown even Father's shoes, his parents had to look up and down the streets for size-46 shoes.

那双大脚穿不下爸爸的鞋子，父母只好满街找46码的鞋子。

3·Look straight, look up, look down, and blink your eyes.

向前看，向上看，向下看，眨眨眼。

4·Lie down and look straight up through the branches, and climb a tree to look down the path.

你可以躺下来透过树枝直直地向上看，也可以爬上树从小路向下看。

5·Lie down and look straight up through the branches; climb a tree to look down the path.

躺下，透过树枝向上直视；爬上一棵树向下看。

6·Animals arrived, liked the look of the place, took up their quarters, settled down, spread, and flourished.

动物们来到这里，喜欢这里的景色，占据了它们的栖息地，定居下来，繁衍生息。

7·Students still need to look up information in books and write it down when they do their homework, which doesn't take them too much time.

学生仍然需要在书中查找信息，做作业的时候把它写下来，这不会花费他们太多时间。

8·If they're going up and down, seam lines, designs in prints, stripes, trims, and garment silhouettes can all be slimming and make you look taller.

如果缝线以及印花、条纹、边饰和服装外形的设计都是上下细长型的，就会使你看起来高不少。

9·The mother and baby koalas decided to climb down from the tall eucalyptus trees to get a close-up look of the visitors to their home at the Koala Conservation Center in Phillip Island, Australia.

考拉妈妈和宝宝决定从高高的桉树上爬下来，走近看看到他们家——位于澳大利亚菲利普岛（Phillip Island）的考拉保护中心——做客的游客们。

10·‘Keep your chin down and look up through your eyelashes for a face-slimming look that enhances your cheekbones.’

下巴放低，眼睛透过睫毛向上看，这样能够突出颧骨，脸看起来也比较纤瘦。