Both boys had good manners, politely shaking hands.这两个男孩都很有礼貌,友好地握了手。His behaviour offends against the canons of good manners.他的行为违背了礼法的准则.Mother attaches a great deal of value to good manners.妈妈很重视礼貌....
The biology class studied the generation of fruit flies.生物班的学生研究了果蝇的繁殖。A lie begets a lie till they come to generation.谎言生谎言,谎言传万代。The generation of aerosols in polluted atmospheres has been investigated in several exper...