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Telescopes and microscopes are optical instruments.是什么意思？

Telescopes and microscopes are optical instruments.

望远镜和显微镜是光学仪器.

相关词汇
telescopes and microscopes are optical instruments

telescopes

n. 望远镜( telescope的名词复数 )；

and

conj. 和，与，而且，于是，然后，因此；

microscopes

n. 显微镜( microscope的名词复数 )；

are

vi. （用于第二人称单复数现在时，第一、三人称复数现在时）是；n. 公亩（等于100平方米）；

optical

adj. 视觉的，视力的，眼睛的，光学的；

instruments

n. 器具( instrument的名词复数 )，工具，（尤指航空中用于操作的）仪器，乐器；
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