適時(shí)制度j: J, j (pl. J's, j's, Js ...just: n.,vi. =j(luò)oust. time: n. 1.時(shí),時(shí)間,時(shí)日,歲月。 2.時(shí)候,時(shí)刻;期間; ...j just-in-time purchasing: 適時(shí)購(gòu)買be just in time for: 參加……來(lái)得很及時(shí)下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯