| 单词 | trial glasses |
| 释义 | > as lemmastrial glasses trial glasses n. (plural) a set of graduated glasses for ascertaining the requirements of defective vision. ΚΠ 1891 Cent. Dict. Trial glasses. 1895 Catal. Surg. Instruments (Arnold & Sons) 125 Spectacle Frame, plain, for Trial Glasses. < as lemmas |
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