whet

中文： 磨快、开胃物、刺激物

1. An act of sharpening something by rubbing on an object, especially a whetstone.
2. An item of drink or food consumed as an appetizer or to ward off hunger until a meal; specifically, a small amount of liquor drunk as an appetizer; a dram, a nip. (figuratively)
3. A thing which makes one's desire, interest, etc., more keen; an incitement, an inducement. (figuratively)

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