把导体看成是大量受迫阻尼振动的振子的集合.Envision the conductor as an assemblage of driven , damped oscillators.这个振子将获得能量.This oscillator will pick up energy.所有的振子都处于基态.All oscillators are in bottom state....
老鹰无需振翼就能翱翔.The eagle can soar without flapping their wings.海燕从遥远的地方振翼飞来.The petrel came winnowing in from afar on the sea.如轻柔的翅膀在振翼飞翔.It flutters like soft wings in flight....
埃利奥特跨过终点线时仅比对手落后半秒钟。Elliott crossed the finish line just half a second behind his adversary.“你什么意思啊？”我问，替利迪感到愤愤不平。"What do you mean?" I asked, offended on Liddie's behalf.雪利的兄弟现在在瑞典做心脏外科高级顾问医师。Shirley's brother...
海伦选择的唇膏很适合她的肤色。Helen's choice of lipstick was a good match for her skin-tone.“海伦走之前吃了点儿东西，”塞西尔急忙插了一句。"Helen had something to eat before she left," put in Cecil anxiously.海伦也是25岁，也来自伯明翰，但是相同之处仅此而已。Helen is also 25 an...