Retroreflector
n. 回射器
??? 情景例句
I love the fresh air, the scenery, the exercise, and the time to think.
我喜歡新鮮的空氣、景致、運動以及有時間思考。
I like painting,but I wouldn't want it to be my life's work.
我喜歡油畫，但是我不想要它是我一生的工作。
People woken during these periods of eye-movements generally reported that they had been dreaming.
在眼球活動期間被叫醒的人都說自己在做夢；