Retroreflector
n. 回射器
🗣️ 情景例句
if that's what you mean.
是这个意思吧。
I'm going to show him how to sing a song.
我正要指点他如何唱歌。
Here you can see two workers who, between them, have just finished cutting three cartloads of golden brown macaroni stalks.
这里您可以看到两个工人，他们协力割下了3车金黄色的通心粉秸。