两臂: both arms在: exist; be living体: body; part of the body侧: slant; sloping交替: supersede; replace哑铃: dumbbell交替推哑铃: seesaw press with dumb-bell两臂交替划手: alternate arm action交替哑铃推举: alternate dumbell press交替哑铃弯举: alternate dumbbell cure; alternate dumbell curl两臂交替划水动作: alternating arm action侧交: top-cross在体: in vivo体侧: side两臂: brace = two arms哑铃: [体育] dumbbell◇哑铃操 dumbbell exercises提举力: coattails在体内: in vivo; within the body在体外: in vitro垂直提举: vertical lift毛毡提举: blanket lift提举辊子: lifting of roll燕尾提举力: coattails交替: 1.(接替) supersede; replace 新老交替 the new replacing the old; the old giving place to the new2.(替换着) alternately; take place by turn; in turn 昼夜交替。 day alternates with night体侧干: truncus lateralis