New words：

dam [dæm] n.水坝；拦河坝

Sample Sentences：

That poor girl dammed back her tears.
A dam burst and flooded their villages.
The dam was not strong enough to hold the floodwaters.

New words：

artificial [ˌɑrtɪˈfɪʃl] adj.人工的；人造的；

Sample Sentences：

The first artificial heart was created in Russia in 1936.

The new dam will form a large artificial lake behind it.

85 percent of artificial Christmas trees are made in China.

dam [dæm] n.水坝；拦河坝

New words：

browse [braʊz] v.浏览；翻阅；(在计算机，尤指互联网上)搜寻信息，浏览信息
browser [ˈbraʊzər] n.浏览器；

Sample Sentences：

She browsed the shelves for something interesting to read.
I found the article while I was browsing through some old magazines.
You should see a message asking if you want to use that browser as the default browser.

New words：

tablet [ˈtæblət] n.片剂；药片；平板电脑

Sample Sentences：

Take two tablets with water before meals.
I need a tablet with a screen size of 12 inches or more.
You can browse the Web with a tablet while watching TV on your couch.

browse [braʊz] v.浏览；翻阅；(在计算机，尤指互联网上)搜寻信息，浏览信息

New words：

application [ˌæplɪˈkeɪʃ(ə)n] n.应用程序；运用；申请

Sample Sentences：

Please include a recent photograph in your application.
The teacher showed us how to use the math application on our tablets.
She needs an app that can make it easier for her to buy train or airline tickets.

tablet [ˈtæblət] n.片剂；药片；平板电脑