a pair of lace-ups的用法和样例：
- When I woke the next morning and went downstairs,I found a decorated Christmas tree in the front room,and underneath it,a pair of lace up boots,a red fire engine,and a sack of candy.
- Some of the greatest players to ever lace up a pair of sneakers have participated in this historic rivalry.
- Last year, an eyelet ripped on a pair of $85 running shoes I hadbought four months earlier. Suddenly, I couldn't lace up the shoe.
- I bought a pair of tan leather shoes the other day.
- Billy has a pair of new trousers.