强健: strong and healthy; stout; sturdy 短语和例子体魄强健 be physically strong; have a strong constitution; 强健的小伙子 a sturdy lad; a lusty boy; 运动可使肌肉强健。 exercise tones up the muscles
胆怯: timid; cowardly; nervous 短语和例子他从不知什么叫胆怯。 he never knows what cowardice is. 他胆怯了。 his courage failed
