off hours 業(yè)余時(shí)間;下班時(shí)間off hook circuit 閉合電路off his guard off her guard off hand off guard 不提防;不警惕off grade grain [經(jīng)濟(jì)學(xué)]等外種子off from work 下班,休假off duty 下班off day 休息日off course 偏離方向,道路,軌跡off colour 褪了色;精神不好;身體不舒服;令人懷疑的off color 色澤不佳的;下流的;精神不好的off chance 不容易有的機(jī)會(huì);極小的可能性off centre 偏心,偏離中心off center off campus 在校外;不住校off beat 弱音;弱拍;不合拍子off beam 錯(cuò)誤的,不正確的。off base