stonewalls
v.
（用冗长发言或拒绝回答问题等）拖延[阻碍]议事，设置障碍( stonewall的第三人称单数 );
拒绝执行命令，拒绝服从命令;
（板球中）打守势球，小心地打慢球;
例句:
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When she doesn't like to face a problem, she simply stonewalls.
当她不想面对某个问题的时候, 她就拖延.
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Senators can say that they will not vote for a nominee who stonewalls them.
来自NEWYORKER
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But the Army stonewalls him, as does a local police detective, played by Charlize Theron.
来自NPR