开 ㄎㄞ kāi 拓 ㄊㄨㄛ ˋ tuò 開 ㄎㄞ kāi 拓 ㄊㄨㄛ ˋ tuò to break new ground (for agriculture) to open up (a new seam) to develop (border regions) fig. to open up (new horizons)