work toward the passage of some legislation by exchanging political favors such as trading votes
logroll详细解释
log.roll v.（动词）log.rolled,log.roll.ing,log.rolls v.tr.（及物动词）To work toward the passage of (legislation) by logrolling.互投赞成票：互相投票以促成（立法）通过v.intr.（不及物动词）To engage in political logrolling.参与政治投票交易
