B2 a cylinder-shaped device for making objects that are far away look closer and larger, using a combination of lenses, or lenses and curved mirrors望远镜
Examples
With a good telescope, you can see craters on the moon.
A low-power telescope is enough if you only want to look at the moon.
I used a pile of books as a rest for my telescope.
to make or become shorter by reducing the length of the parts缩短;变短
noun
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