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adj.狡猾的( tricky的比较级 )，（形势、工作等）复杂的，机警的，微妙的...
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Imposing speed restrictions is easy, but forcing motorists to observe them is trickier.限制车速容易，但强制司机遵守这些限速规定就难办多了。This is the general rule, but some cases are trickier than others.以上是一般规则, 但某些案例会比别的案例更为棘手.The lower the nu...
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Imposing speed restrictions is easy, but forcing motorists to observe them is trickier.限制车速容易，但强制司机遵守这些限速规定就难办多了。Imposing speed restrictions is easy, but forcing motorists to observe them is trickier...限制车速容易，但强制司机遵守这些限速...