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“signal”的英文解释?

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“signal”的英文解释?
速求,跪求!
切记:我要的是英文版解释
顺便能否翻译一下这段:
他们猜,随便猜,不重要。连上彼此的讯号才有个依靠。有太多人,太多事加在我们之间咆哮。杂讯太多讯号弱就连风吹都要干扰。
“signal”的英文解释?
1.anything that serves to indicate,warn,direct,command,or the like,as a light,a gesture,an act,etc.:a traffic signal; a signal to leave.
2.anything agreed upon or understood as the occasion for concerted action.
3.an act,event,or the like that causes or incites some action:The unjust execution was the signal for revolt.
4.a token; indication.
5.Electronics.an electrical quantity or effect,as current,voltage,or electromagnetic waves,that can be varied in such a way as to convey information.
6.Cards.a play that reveals to one's partner a wish that he or she continue or discontinue the suit led.
–adjective 7.serving as a signal; used in signaling:a signal flag.
8.unusual; notable; outstanding:a signal exploit.
–verb (used with object)
9.to make a signal to.
10.to communicate or make known by a signal.
–verb (used without object)
11.to make communication by a signal or signals.