单词	穴--坑
释义	坑；穴pit
随便看	be on one's dignity be on one's ear be on one's game be on one's good behavior be on one's good behaviour be on one's guard be on one's high horse be on one's hind legs be on one's honor to-v be on one's last pins be on one's legs be on one's mettle be on one's mind be on one's own be on ones own be on one's pins be on other side of the fence be on pins and needles be on receiving end be on record be on sentry be on soft be on someones's side of the fence be on speaking terms be on tenters