signaled是什么意思？

signaled

以动作向…示意；用信号发出，用信号通知；向…发信号（signal的过去分词）

例句

• The cop signaled traffic to halt to allow pedestrians to cross the street. 警察指示车辆停下以便让行人过街。
• Tom signaled his friend which way to go. 汤姆示意他的朋友走哪条路。
• The conductor signaled the orchestra to rise. 指挥打手势让乐队起立。
• He signaled a message to his brother. 他用信号向他哥哥发信息。
• She signaled that he was about to turn left. 她打手势表示他就要转到左面去了。
• She signaled the advance. 她发出信号前进。
• The submarine signaled for help. 潜水艇发出求救的信号。
• The tourists signaled the driver to pull over. 游客们招呼司机把车开到路边.
• He signaled the waiter to bring the menu. 他作手势要侍者拿菜单来.
• They signaled which way one is going to turn. 他们打信号示意走哪一条路.

英语四级真题

Why didn't you stop when we first signaled you at the crossroads?
出自-2010年12月听力原文