单词	失了道了
释义	同ASTRAY
随便看	back the oars back the sails back the wrong horse back thrust back thrusting back-thrusting back time back timing back title back titration back to back to ... back to back back-to-back back-to-back arrangement back to back capacitor bank breaking current back to back connection back-to-back connection back-to-back connection converters back-to-back converter station back-to-back counter back-to-back--counter back-to-back coupling back-to-back coupling--b-b back-to-back coupling，b-b