您要查找的是不是：
- Run to your positionswhen you hear the prearranged signal. 你们听到预定的信号时; 就各就各位.
- At some prearranged signal, many of them, but less than one for each hundred standing at the top of the golden bridge, turn and flee downward. 某个预定的信号触发了，他们中的许多，纷纷转身，向下奔逃。但不是每一个都跑了，金桥顶上仍然有一百个人呆着。
- the use of movements (especially of the hands) to communicate familiar or prearranged signals. 运用动作（特别是双手）传达熟悉或者预先安排的信号。
- I answer with prearranged hand signals. 我用事先安排好的手势作答。
- the use of movements (especially of the hands) to communicate familiar or prearranged signals 运用动作（特别是双手）传达熟悉或者预先安排的信号
- A red light is usually a signal of danger. 红灯通常是危险的信号。
- Signals control each section of the railway track. 各种信号控制着铁路轨道的每个部分。
- I stood watching for the signal to change to green. 我站着等待交通信号转为绿灯。
- Let's set the clock by the radio time signal. 咱们照着收音机的报时信号把钟对一对。
- A period signals the end of a sentence. 句号表示一个句子结束了。
- A red lamp is often a danger signal. 红灯常常是危险的信号。
- A reflected signal on a communication channel. 一种在通信信道上反射回来的信号。
- The lighthouse flashes signals twice a minute. 灯塔每一分钟发出两次信号。
- The rise in prices was a signal for rebellion. 物价上涨引起了叛乱。
- The ship's radio sent out signals for help. 轮船上的无线电发出求助信号。
- A device that sorts cards, data, or programs in a prearranged sequence. 程序装置接预先排好的次序整理卡片、数据或程序的装置
- A couple's conjugal fate is prearranged. 婚姻是缘分。
- The signals go to and fro at a very high but almost constant speed. 那些信号用非常快但几乎不变的速度来回传送。
- at a prearranged signal 看到预订的信号
- A channel over which pilot signal is transmitted. 可在其上传输导频信号的一种信道。
