widen/ 'waɪdn /

1.vt.[+road] [ river etc] 
拓宽

2.vt.[+experience] [ horizons etc] 
扩展

3.vt.[+gap] [ difference etc] 
扩大

4.vi.[road] [ river etc+] 
变宽

5.vi.[gap] [ difference etc+] 
扩大

֧ɨ