balk
[bɔk]
vi.
畏缩不前，犹豫;
（指马）不肯跑;
拒绝;
[体]假动作;
vt.
阻止，阻碍;
推诿;
过错;
n.
阻碍，妨碍;
错误，挫折;
田埂;
[体]假动作;
例句:
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To emancipate all mankind, we will balk at no sacrifice . even that of our lives.
为了全人类的解放, 即使牺牲生命也在所不惜.
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Even biology undergraduates may balk at animal experiments.
面对动物实验，哪怕是生物专业的大学生也会畏缩。
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Even a single man bad been able to balk him.
一个人就把他难倒了.
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To justify their actions, the balk at it.
来自SA
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But developing countries balk at that for two reasons.
来自WSJ
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Before you balk at the name, check the back story.
来自BBC