FAQs About the word stiffen

僵化

become stiff or stiffer, make stiff or stiffer, severely restrict in scope or extent

加强,硬化,严厉,变结实

轻松,减少,改良,温和,软化

stiff-branched => 硬枝的, stiff-backed => 僵硬, stiff upper lip => 坚强, stiff gentian => 龙胆草, stiff aster => 硬叶紫菀,