n. 中提琴. =>illus at App stringed musical instrument played with a bow, of larger size than a violin
中提琴是一种弦乐器. The viola is a stringed instrument
中插板升降索 centerboard pendant
中插板吊索 centreboard halyard
中插板箱 centerboard case
中插板索 centreboard pennant
n. 中插板（船底中心防止船漂移的垂直升降板）. =>illus at dinghy 见dinghy之插图. moveable board that can be raised or lowered through a slot in the keel of a sailing-boat to prevent drifting