(指人) 滑頭的；不可信賴的。
例句：
- You'd be mad to go into business with Tony. He's as slippery as an eel. (你一定是瘋了才跟東尼做生意。他不可信賴)
- I advise you not to do business with Jack. He's as slippery as an eel. (我勸你別和傑克做生意。他滑頭得很)
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