stern
adj.严格的(harsh,hard,strict);僵化的
The museum guard gave us a stern warning not to touch the paintings.
博物馆警卫严厉警告我们不许碰那些画。
stringent
adj.严格的(strict,rigid);迫切的
Our company has a sringent policy against smoking.
我们公司有严厉的禁烟政策。
acrimonious
adj.严厉的;辛辣的
bold
adj.大胆的(daring, brave)
The bold employee insisted on better working conditions.
那位大胆的雇员坚持要有更好的工作条件。
daring
adj.大胆的，勇敢的(bold, audacious)
A daring firefighter pulled child from the fire.
一名勇敢的消防队员从火中救出了孩子。
dauntless
adj.勇敢的
The dauntless pilot flew through the rough storms.
那个勇敢的飞行员飞越了狂风暴雨。
gallant
adj.英勇的(courageous,heroic)
Mary and Jane gave their gallant waiter a generous tip.
玛丽和简给了勇敢服务生慷慨的小费。
intrepid
adj.勇敢的(fearless,dauntless)
The intrepid explorers reached the South Pole.
勇敢的探险家到达了南极。
undaunted
adj.无畏的，勇敢的(intrepid,fearless)
valiant
adj.英勇的(courageous,dauntless,intrepid)
The valiant soldier was given a medal.
那个勇敢的士兵获得了一枚奖章。
valor
n.英勇，勇猛(bravery,heroism)
courageous
adj.勇敢的，有胆量的
He was courageous to challeng the Minister on certain issues.
在某些问题上他敢于挑战部长。
valorous
adj.勇敢的，勇武的，无畏的(brave,courageous)
gallantry
n.勇敢
He was awarded the Military Cross for gallantry in combat.
他因战斗中的英勇表现而被授予军事十字勋章。