He concludes that phrases such as "clinically proven" or "dermatologist approved" are as vague as they are evasive.

他的结论是，那些声称化妆品经过了“临床验证”或者“皮肤科专家认可”的遣词用语既混淆视听又逃避事实。

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Yet he seemed to tire as the debate wore on, and many of his answers such as on global warming, foreign policy, the uninsured rate in Texas, and education were evasive, vague and unfocused.

FORBES: Why Rick Perry Won the GOP Debate at the Reagan Library