Change is the constant, the signal for rebirth, the egg of the phoenix.
1.暗号 a movement or sound that you make to give sb information, instructions, a warning, etc.
Signals are made with flags or lamps.
2.预兆 an event, an action, a fact, etc. that shows that sth exists or is likely to happen
The first warning signals came in March.
3.信号 a piece of equipment that uses different coloured lights to tell drivers to go slower, stop, etc.
The signal transmitted between the end facilities is relayed around the obstruction by the repeater.
The demonstration was the signal for the riot.
1.发信号；用信号通知，示意 [I,T] to make a movement or sound to give sb a message, an order, etc.
He signaled the waiter to bring the menu.
2.标志 [T] to be a sign that sth exists or is likely to happen
Almost every culture has rituals to signal a change in one's life.
They beamed the to the satellite.