700. by turns 轮换地

699. in truth 事实上, 实在

698. place (put, have) trust in 依赖

697. to trust …to 把…委托给

696. be true of适合于…的;be true to 忠于…

695. be in touch with 与…有接触, 有联系 be out of touch with 与…没有联系或接触

694. in total (=all have been added up) 总计

693. on top of 在…上面

692. at a time 一次, 每次; 同时

691. at times (=occasionally) 间或, 时常 at all times (=always) 始终, 总是