Retroreflector
n. 回射器
🗣️ 情景例句
The meat's been marinating all night.
昨晚就把肉腌上了。
I will be thy friend,but not thy vices' friend.
我愿意做你的朋友，但不做你那些恶习的朋友。
By correlating markings made in various parts of the world, historians have been able to read this difficult code.
历史学家通过把世界各地留下的这种痕迹放在一起研究，终于弄懂了这种费解的代码。