英语词汇“老大难”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	老大难
释义	老大难 lǎo dà nàn 基本例句 long-standing; big and difficult 老大难单位unit with serious andlong-standingproblems 老大难的技术问题knotty technical problem of long standing
随便看	round-trip time round -trip time round-trip times round trip to round-trip trade Round-Trip Trading round trip trajectory round-trip trajectory round trip transmission round trip transmission delay round-trip transmission delay round-trip vessel round trowel round trunk round tube round tube blank round tube radiator round tubes round-tuck stern round tuit round tuits round tunnel round tup round turbulence jet round turn