In one study, light smokers were found to be more than twice as likely to get cataracts as non-smokers.
一项研究表明，轻度烟民患白内障的比例是不吸烟者的两倍以上。
《柯林斯英汉双解大词典》
2
In the length of time it takes for the light to get from that bulb to the table, this machine processes two operations.
在光从灯泡到达桌子所需要的时间内，这台机器进行了两项操作。
3
Unlike visible light waves, these radio waves can get through the various gases and dusts in space, and through our own earth's atmosphere comparatively easily.