嘲笑声的背后潜伏着一种越来越强烈的不安。Behind the mocking laughter lurks a growing sense of unease.心头涌起一阵强烈的感情，模糊了他的判断力。A tide of emotion rose and clouded his judgement.强烈的敌对和紧张气氛依然笼罩着这座城市。There's still an atmosphere of great hostilit...
They are priceless, unique and irreplaceable.它们是独一无二、不可替代的无价之宝。The Radio frequency communication irreplaceable makes mobile communication realized in underground mine.射频通信无可替代地实现了矿山井下的移动通信.B: You are very upset with the ...