lectures he hopes might whet the appetite and keep students' enthusiasm他希望能激发学生兴趣、保持他们热情的讲座

A really good catalogue can also whet customers' appetites for merchandise.一份非常好的商品目录也可以激起顾客的购买欲望。

The tutor at the night-classes had whetted her appetite for more work.夜校的那位教师激发了她想做更多工作的欲望。