单词	do his possible
释义	do his possible vi.竭尽所能
随便看	signalling channel signall ing channel signal l ing channel signalling for transport signalling frequence signalling frequency Signalling Game signalling group channel signalling identifier / service id signalling in band signalling in-band signalling indicator signalling information signalling information field SIGNALLING in telephonic or telegraphic systems signalling key signal l ing key signalling key of pull type signalling key of push type signalling lamp signalling lamp for air horn signalling layout signalling light for air horn signalling link signalling link blocking