There is a pair of sports shoes, three pieces of coats and a pair of trousers in my case.
我的箱子里有一双运动鞋、三件衣服、一条裤子。
2
If possible keep a spare pair of glasses accessible in case your main pair is broken or lost.
如有可能留一副备用眼镜以防你常用的那副打碎或丢失。
《柯林斯英汉双解大词典》
3
A pair of bills sponsored by Massachusetts state Senator Jason Lewis and House Speaker Pro Tempore Patricia Haddad, to ensure "gender parity" on boards and commissions, provide a case in point.