v.削弱；廉价出售或工作；从下边切
n.（牛的）嫩腰肉；下部切割；切口；切球
Some members of the board were trying to undercut the chairman's authority. 委员会的某些成员试图削弱主席的权力。
n.消弱；削价；凹割；掏槽；截槽
动词undercut的现在分词.
