英汉解释

vi. 变硬；变猛烈；变粘
vt. 使变硬；使粘稠

同义词

v. constrain，tighten，tighten up

反义词

v.   loose，loosen，relax

参考例句

1. The storm was stiffening then.
那会儿，风暴变得越来越猛烈。
2. This lignification serves to stiffen and strengthen the cells.
木质化足以使细胞变硬和增强。
3. To stiffen the shells, we added narrow carbon covered foam ribs on the inside.
僵硬的炮弹，我们增加了狭隘的碳泡沫肋骨涵盖在里面。

英英解释

v.
  1. become stiff or stiffer
  2. make stiff or stiffer
  3. restrict

网络释义

stiffen
加强; 加劲，加强; 使硬; 变硬;
stiffen flow
粘滞流（动）;
stiffen inspection
加强监督;
stiffen syrup
浓糖浆;
Stiffen up that upper lip
坚强些; 咬紧你的嘴唇;