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 students began to enter the classroom and Anna was startled at their loudness.学生们开始进入教室.安娜被他们的喧闹声吓了一跳.His heart bumped in his breast ...
Some shops are bowing to consumer pressure and stocking organically grown vegetables.一些商店迫于顾客的压力，开始供应有机蔬菜。I have only a bowing [ nodding ] acquaintance with him.我和他只有点头之 交." I'm very glad to meet you,'said Ames...