third wheel
US /ˈθɜrd ˌwil/
UK /ˈθɜrd ˌwil/
1.
電燈泡, 多餘的人
a person who is in a situation with two other people who are romantically involved or who are very close friends, making the third person feel awkward or unwanted
:
•
I felt like a third wheel on their date.
在他們的約會中，我感覺自己像個電燈泡。
•
They're always together, so I often feel like a third wheel when I'm with them.
他們總是形影不離，所以我跟他們在一起時常常覺得自己像個電燈泡。