「1+1英文」 Angela： "You two go on ahead without me. I don't want to be the third wheel."

「1+1中文」

安吉拉：你们两个去吧，我可不想当电灯泡。

「1+1解析」

The "third wheel" refers to the person who is the outsider when there is a group of three.

中文意思：第三者；电灯泡。