Variational principles play an important role in the formulation of many problems of mathematical physics.变分原理现在许多数学物理的表述中起着重要作用.Bernardine: You're quite wrong there. It's a special formulation that's just...
他能表演好几种令人惊叹的把戏，包括哑剧和玩杂耍。He can perform an astonishing variety of acts, including mime and juggling.社区变成了玩杂耍的、踩高跷的和扮装皇后的天地。The neighborhood is given over to performers, stilt walkers and drag queens.我不会玩杂耍。I can't ju...
Inconsiderate neighbours can be more than an annoyance.不为他人着想的邻居会非常惹人厌。Motorists were criticised for being inconsiderate to pedestrians.开车的人因不考虑行人而受到指责。It was inconsiderate of you not to call.你连个电话也不打，不够体谅人。...