1. The policeman signaled the traffic to move forward slowly. 交警发出信号示意车辆缓慢前行。
2. This game signaled the return of our very own Captain Marvel, the one and only John Terry. 这场比赛标志着我们唯一的神奇队长约翰·特里的回归。
3. The man saw the farmer on his tractor working in the field, and he signaled to the farmer. 那个人看到农夫正开着拖拉机在田里干活，他就向这个农夫打了个手势。
4. Owens and Olson hypothesize that the presence of carotenoids, as signaled by coloration, would be meaningful in the context of mate selection if carotenoids were either rare or required for health. 欧文斯和奥尔森假设，如果类胡萝卜素是稀有的或对健康有要求的，则通过着色指示的类胡萝卜素的存在在配偶选择的背景下将是有意义的。
5. Signaled by periodic time interval. 由定时时间间隔触发信号。
