大势所趋 represent [be] the general trend; an irresistable trend; be pushed by the general trend of events; the general trend indicates ....; the general trend of development; the trend is unmistakable.; the trend of times; this is dictated by the general trend
大势已定 the lot is cast.; the cat jumps.; a foregone conclusion
大势已去 it is all up with ....; be on the decline; be rendered powerless; nothing much can be done about it now.; one's day has gone.; the game is as good as lost.; the situation is beyond salvation.; the situation is hopeless
The 8th route army , expanding everywhere , however , soon left him no place to live and he came across the yellow river with his troops 然而,八路军到处扩大势力,很快把他挤得无立足之地,于是他率部南渡黄河。