coincide /ˌkəuinˈsaid/ vi. 1.同时发生：The visit coincided with the university’s 100th anniversary. 参观定在百年校庆之时。2.相符，相一致：My free time never coincides with hers. 我和她总不能同时有空。3.位置重合：Line AB coincides with Line CD. 线段AB与线段CD相重合。