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Astigmatism can occur in addition to nearsightedness and farsightedness.散光可发生在除近视和远视.Maybe you fall asleep in class because of uncorrected astigmatism.也许你在课堂上睡觉是因为你的眼睛散光.They have what is called astigmatism.他们有所谓散光.Anast...
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astigmatism的音标：astigmatism的英式发音音标为：[ə'stɪgmətɪzəm]astigmatism的美式发音音标为：[ə'stɪɡməˌtɪzəm]...
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Maybe you fall asleep in class because of uncorrected astigmatism.也许你在课堂上睡觉是因为你的眼睛散光.They have what is called astigmatism.他们有所谓散光.Under astigmatism even narrow parallel light beams will not combine into one point.有象散存在时甚...