Ametrometer
[医] 屈光不正测量器, 变常眼测量器
🗣️ 情景例句
I can't express myself very well in English.
我用英语表达不好。
I have great difficulty in understanding him.
我觉得很难理解他。
Man-made satellites have been sent up into space by many countries.
许多国家都成功地把人造卫星送入了太空。