1、appetite

胃口;食欲

He has a healthy appetite.

他胃口很好。

Symptoms are a slight fever, headache and loss of appetite.

症状包括低烧、头痛和食欲不振。

强烈欲望;渴望

his appetite for success.

他对成功的强烈渴望

Americans' growing appetite for scandal.

美国人对丑闻日益增强的好奇心

2、guarantee

确保；使必然发生

Surplus resources alone do not guarantee growth.

仅有富余的资源并不能确保发展。

a man whose fame guarantees that his calls will nearly always be returned.

其名望能确保他的呼吁几乎总能得到回应的人

保证

A famous old name on a firm is not necessarily a guarantee of quality.

公司悠久的品牌并不能确保商品的质量。

There is still no guarantee that a formula could be found.

还没有把握是否能找到一个配方。

保证…必定发生；承诺做；答应提供

Most states guarantee the right to free and adequate education.

大多数州都保障人们免费享受充分教育的权利。

All students are guaranteed campus accommodation for their first year.

保证安排所有的学生第一年在校内住宿。