What insects have one pair of wings? What insects have two pairs of wings?

什么昆虫有一对翅膀，什么昆虫有二对翅膀？

youdao

Seriously, I only have one pair of shoes because I only have one pair of feet.

说真的，我只有一双鞋，因为我只有一双脚。

youdao

You only have one pair of eyes so take care of them.

眼睛只有一双，所以要保护好眼睛。

youdao

For the moment,the 3D sets come with one pair of glasses.

VOA: standard.2010.03.11

And if we put that in our bond here, we have 1, 2, 3 bonds, plus we have one lone pair left over.

如果我们把它们放到键里，我们有1，2，3个键，还剩下一对孤对在这里。

麻省理工公开课 - 化学原理课程节选

Seriously, I only have one pair of shoes because I only have one pair of feet.

说实话，我就只有一双鞋，因为我只有两只穿鞋的脚。

How many实战 - SpeakingMax英语口语达人

This way it's so much easier and needs only one pair of business shoes.

CNN: Beating the stress of business travel

You don't stay in business with a customer who only wants one pair of jeans.

FORBES: Magazine Article

Nike previously had made one pair of shoes for an 11-year-old disabled child in Oregon.

FORBES: Dear Nike: I Can't Tie My Shoes