更羸拉满弓，随着一声弓弦响，真的像更羸所说的那样，大雁应声落地。
With the twang , the bird fell to the ground just as Geng Lei said before .
战国时期（公元前403―221年中国中原地区各诸侯国连年争战的时代）魏国有个名叫更羸的人。
In the Warring States Period , there was a man in the State of Wei called Geng Lei .
更羸