白内障是一种影响晶状体透明性的疾病。Cataracts is a condition that affects the transparency of the lenses.硷金属卤化物能生长成具有优良透明性的大晶体.The alkali halides can be grown into large crystals of excellent transparency.仍然, 由于它所有的困难, 透明性通常比选择性更好.Still, ...
Furniture, household articles, and gramophones.收藏家俱 、 庭用品和老式留声机.They become gramophones and forget their duty to understand and create new things.他们起了留声机的作用,忘记了自己认识新鲜事物和创造新鲜事物的责任....
His painting went through both representational and abstract periods.他的绘画经历了具象风格和抽象风格两个阶段。Money was a commodity she never thought about except in the abstract.钱对她来说就是个抽象的东西，她从不去想钱。In the exhibition, abstract paintings ar...
She was a bridesmaid at the wedding.她在婚礼上担任女傧相.I was bridesmaid to Cathy.我当卡西的女傧相.But first a toast to Amily : always the bridesmaid, never the bride.不过,首先,我要 敬艾米丽,永远是伴娘, 从来也不做新娘....
Astigmatism can occur in addition to nearsightedness and farsightedness.散光可发生在除近视和远视.Such farsightedness is, alas , only a drop in the bucket.可惜,这些远见只是杯水车薪.FARSIGHTEDNESS is an asset whose value should not be underestima...