{"bac":{"definition":"n. A broad, flatbottomed ferryboat, usually worked by a rope.\nn. A vat or cistern. See 1st Back.","translation":"abbr. 二进制模拟转换（Binary-Analog Conversion）；（美国）波音飞机公司（Boeing Airplane Company）；英国飞机公司（British Aircraft Corporation）","word":"bac"}}