signal ['signl]

n. 信号,导火线,动机
v. 向...作信号

词形变化:

名词:signaler 动词过去式:signaled/signalled 过去分词:signaled/signalled 现在分词:signaling/signalling 第三人称单数:signals/signals

例句与用法:

1. I corrected my watch by the time signal.
　 我按报时信号校正我的表。

2. Her speech yesterday was a signal that her views have changed.
　 她昨天的讲话标志著她的观点已经转变。

3. Is this announcement the signal of better times ahead?
　 宣布的这件事是否预示往後日子越过越好了？

4. The rise in prices was a signal for rebellion.
　 物价上涨引起了叛乱。