您要查找的是不是：
- 正交orthogonality
- 交单presentation
- 单交single cross
- 新交new friend
- 交上hand in
- 交作业hand in homework
- 交税payment of duty
- 援交enjo - kosai
- 交联cross bonding
- 交线line of intersection
- 交学费pay the tuition fee; pay tuition
- 交钱pay
- 五金交电hardware and electrical equipment
- 滥交promiscuity
- 交恶fall foul of each other; become enemies
- 群交flock-mate
- 泛泛之交a casual acquaintanceship
- 正交试验orthogonal test
- 交联剂cross linker
- 交叠overlap
