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A monocle is a glass lens which people wore in former times in front of one of their eyes to improve their ability to see with that eye. (旧时的)单片眼镜
When these men of leisure have completed the business of investing, they retreat to their anterooms or country clubs with their pipes, ascots and monocles in tow.
As for nearly all retailers, the fourth quarter of 2012 was clearly the top sales period. 63% of appointments were walk-ins, and the company sold 252 monocles in 2012.