基本解釋n.伸展；擴大；延長部分；電話分機名詞extension的復(fù)數(shù)形式.同根派生 extensions相關(guān)詞英漢例句用作名詞 (n.)Your back exercises should include lat pull-downs and back extensions.背部的練習應(yīng)包括前曲和后背伸展。For your biceps and triceps, perform bicep curls, hammer curls, dips, and tricep extensions.鍛煉二頭肌和三頭肌，練習二頭肌彎曲，錘卷曲，下彎和三頭肌伸展。These temporary hive extensions contain frames of empty comb for the bees to fill with honey.這些臨時的蜂箱擴大了能包含為蜜蜂準備的空巢結(jié)構(gòu)去存蜜。There are telephone extensions in every office.每間辦公室都有電話分機。extensions更多例句