He gripped his brother's arm lest he be trampled by the mob.他紧抓着他兄弟的胳膊，怕他让暴民踩着。They decided to retreat lest they would be between two fires.他们决定撤退,否则就要受两面夹击.Be careful lest you ( should ) fall from the tree.小心,不要从树上...
I was afraid to open the door lest he should follow me...我不敢开门，唯恐他还跟着我。I was told to beware lest I ( should ) injure him.有人关照我,要我小心别伤害他.Let me put down your telephone number lest I forget it.让我先记下你的电话号码, 以免忘了。The preside...
She stood up and began to pace to and fro.她站起身，开始来回踱步。The boat was rocking gently to and fro in the water.小船在水中轻轻地来回摇荡。They travel to and fro between London and Paris.他们奔走于伦敦和巴黎之间....
Two phase - shift - networks of frequency discriminator are given circuit and layout examples.本文较详细地分析了鉴频器用移相网络的特性和集成化难易点.Quartz crystal, crystal oscillator, ceramic resonator, ceramic filter, saw filter, ceramic discrim...