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1·She went for a long walk to work up an appetite.

她为了增加食欲散了很长时间的步。《牛津词典》

2·Exercise will make you work up an appetite.

运动会引起你的食欲。

3·Walking all day, you can work up an appetite.

如果走一天的路，你的胃口就会很好。

4·I have to make an effort to work up an appetite for reading.

我得努力使自己产生天天想读书的愿望。

5·You need to work up an appetite first, then we'll go to the buffet.

你得先让自己饿得饥肠辘辘，然后我们再去吃自助餐。

6·Planning: The hotel is on West Cliff, near both beach and downtown. Work up an appetite by walking along the town's magnificent beach.

推荐：酒店位于西崖，离海边、市中心都极近。 沿着城镇的海边漫步，创造浪漫的时刻。