New words：

tourism ['tuərizəm] n. 旅游业；观光业

Sample Sentences：

Tourism became one of the biggest and the fastest growth industry.

It will be a great choice for tourism, shopping and business meetings.

industry [ˈɪndəstri] n. 工业；行业；生产制造

New words：

resource [ri'sɔ:s] n. 资源；资料；才智；财力

Sample Sentences：

This country is rich in natural resources.
Zhuge Liang was a man of great resource.
Time is your most valuable resource, especially in examinations.

New words：

source [sɔ:s] n. 来源；源头；根源；原因

Sample Sentences：

What is their main source of income?
Do you know the source of Amazon River?
Tourism is a major source of income for the area.

tourism ['tuərizəm] n. 旅游业；观光业

New words：

dairy [ˈdeəri]
n.牛奶场；乳品店；乳制品
adj.牛奶的；奶制的；乳品的

Sample Sentences：

We buy milk at the dairy.
The doctor has told me to avoid dairy.
Asian diets generally have less meat and fewer dairy products.

New words：

protein ['prəuti:n] n. 蛋白质
calcium ['kælsiəm] n. 钙

Sample Sentences：

Fish was a major source of protein for the working man.
Try to balance your diet by eating more fruit and less protein.
Milk products are an excellent source of calcium and protein.
It helps your bodies use calcium, which is necessary to keep your bones strong.

source [sɔ:s] n. 来源；源头；根源；原因