基本解釋[躰育]背水平懸垂英漢例句雙語例句But the tail should not be constantly carried above the level of the back or hang limp.但是尾巴的高度不應該經常超過背的水平線或者垂掛時松弱無力。back level hang更多例句專業(yè)釋義躰育背水平懸垂