v.发信号，用信号传达，用信号通讯( signal的过去式和过去分词 )，发暗号，示意...

n.发信号，信号传输[反射]信号化v.发信号，用信号传达，用信号通讯( signal的现在分词 )，发暗号，示意...

leftsignal的音标：leftsignal的英式发音音标为：[left'si:ɡnəl]leftsignal的美式发音音标为：[left'siɡnəl]...

signal的一般过去时为：signalled...

Varying the style confuses everyone and signals poor attention to detail.混淆形式会迷惑所有人,而且标志着不注重细节.In our village, there is an antenna on every roof for receiving TV signals.在我们村里, 每家房顶上都有天线接收电视信号.Signals are made with flags...

signal的现在进行时为：signalling...