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 ...
这些盘子的边是镀金的.The plates have a gilt edge.那只戒指不过是镀金的.The ring was only plated ( with gold )." 朋友们, 这只不过是些镀金的铅饼!" Friends, they are only gilded disks of lead! "...