adj.狡猾的，滑溜的，不可靠的
Waiter, get this gentleman a glass of port, and look slippy.
服务员, 给这位先生来一杯葡萄酒, 快一点.
Be slippy about it!
快一点!
The streets are still slippy from the rain.
因为雨水的缘故,路面依然湿滑.
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