[开 / 開, kāiㄎㄞ] to open; to start; to turn on; to write out (a medical prescription); to operate (vehicle); abbr. for 開爾文|开尔文 degrees Kelvin, See Also: 開爾文, 开尔文#236
[开拓 / 開拓, kāi tuòㄎㄞ ㄊㄨㄛˋ] to break new ground (for agriculture); to open up (a new seam); to develop (border regions); fig. to open up (new horizons)#4511