'd 〔口語(yǔ)〕 1.= had: I'd ... = I had .... 2.= did: Where'd ... = Where did .... 3.= should (或 would): He'd ... = He should (或 would). 4.=-ed: foster'd.
a d disk]重折光盤(pán); 放棄的; 是一組對(duì)立項(xiàng); 重折光盤(pán),暗帶
d D flat 【音樂(lè)】降 D 調(diào)。 D major [minor] 【音樂(lè)】 D 大調(diào)[小調(diào)]。 D sharp 【音樂(lè)】升 D 調(diào)。 a D student 劣等生。 a D slide valve D 形滑閥。 CD = 400. DC = 600.