As we fall asleep the amplitude of brain waves slowly becomes greater.进入睡眠状态时，我们的脑电波振幅慢慢变大。The amplitude of the vibration determines the loudness of the sound.振动幅度的大小决定声音的大小.The foreground for the cooperation between Chi...
彬彬有礼是绅士的本色.Politeness is an attribute of a gentleman.他一改摇滚歌星紧张忙碌的生活方式，开始过起了乡村绅士的生活。He has swapped his hectic rock star's lifestyle for that of a country gentleman.他具有极上流的绅士的风采.He had the appearance of an extraordina...