the plangent sound of the harpsichord拨弦键琴如泣如诉的声音I can tune the harpsichord as well as play it.我会弹奏大键琴,同样地,我也会给大键琴调音.After playing a little on the harpsichord, he asked for a theme.贝多芬在大键琴上演奏了一会儿后, 向莫扎特要了个主旋律....
大多数海洋腹足纲软体动物在某些幼体阶段形成一种有纤毛的游泳器官。Most marine gastropod mollusks develop a ciliate swimming organ in certain larval stages.我那不怕疲劳的小纤毛每秒钟约做10次清扫动作.My tireless little cilia make about ten sweeping strokes a second.健康的皮肤, 粘膜...