Authentic Kung Pao Chicken should carry a little aroma of litchi. A little sweetness is a must.

正宗的宫保鸡丁是带点荔枝味的。必须稍带甜味。

The book has helped me greatly in my daily communication, especially at work where a good impression is a must.

这本书对我的日常交流有很大帮助，尤其是在工作上，因为工作中必须要给人留下好印象。

The magazine is a must-read in the show business world.

这份杂志是演艺界人士的必读刊物。

His new novel is a must for all lovers of crime fiction.

他的新作是所有犯罪小说爱好者的必读书。

Taking out travel insurance may seem an unnecessary expense, but it is a must.

旅游保险费用看起来似乎是没必要的，但却是必不可少的开支。