Clydonograph
过电压摄测仪
🗣️ 情景例句
Susan's teddy bear.
Susan送的泰迪熊
Bread is the staff of life.
民以食为天。
A sound made by tapping on the hull of a ship will be reflected from the sea bottom,
敲打船体所发了的声音会从海底传回来，