whets
v.
（在石头上）磨（刀、斧等）( whet的第三人称单数 );
引起，刺激（食欲、欲望、兴趣等）;
例句:
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Reading travel brochures whets one's appetite for a holiday.
看了旅游手册就巴不得去度假.
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The decade whets sword, frost blade has never tried.
十年磨一剑, 霜刃未曾试.
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This smell whets my appetite.
这个味道撩起了我的食欲.
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It whets the appetite for a new album in a sparkling, confident fashion.
来自BBC