strong;坚固
firm;stable;稳固
firmlyinvite;固请
resolutelyrefuse;firmlydecline固辞
Itisjustasitshouldbe.固当如此。
Admittedlywecanmakethejourneybytrain,butthereisnoharminourtravellingbyboat.乘车固可,乘船亦无不可。
strengthenthedyke固堤
It'snothighmountainsanddeepvalleysthatbestservetodefendacountry.固国不以山溪之险。
GuCheng固乘