1. underbrush /ˈʌndəbrʌʃ/

-- shrubs, bushes, etc., growing beneath large trees in a forest; undergrowth

On its way through the dense jungle, the patrol had to be constantly wary of enemy soldiers concealed in the underbrush.

在穿过浓密丛林的路上，巡逻队必须时刻提防隐藏在矮树丛中的敌军。

 

 

2. undergraduate /ˌʌndəˈɡrædjuit/

-- (literally, "lower than a graduate") a student in a college or university who has not yet earned his first degree

Most undergraduates take four years to earn a degree, but some achieve it sooner by attending summer sessions.

大多数大学生必须花四年获得学位，但有一些学生参加暑假班就可提前获得。

 

 

3. underpayment /'ʌndɚ'pemənt/

-- insufficient payment

If too little is deducted from Dad's weekly wages for income tax, it results in an underpayment at the 

end of the year.

如果父亲所得税的减免额太少，今年年底就会发生不够缴付的结果。

 

 

4. undersigned /ˈʌndəˌsaɪnd/

-- person or persons who sign at the end of (literally, "under") a letter or document

Among the undersigned in the petition the governor were some of the most prominent persons in the state.

向州长提出请愿书的一些署名者中，有一些是州内最杰出的人士。

 

 

5. understatement /ˌʌndəˈsteɪtmənt/

-- a statement below the truth; a restrained statement in mocking contrast to what might be said

Frank's remark that he was "slightly bruises" in the accident is an understatement; he suffered two 

fractured ribs.

弗兰克说他在车祸中只受了轻微瘀伤是轻描淡写，其实他两根肋骨骨折。

 

 

6. understudy /ˈʌndəstʌdi/

-- one who "studies under" and learns the part of a regular performer so as to be his substitute if necessary

While the star is recuperating from her illness, her role will be played by her understudy.

当明星正在休养恢复健康时，她的角色由候补演员代替。

 

 

7. underscore /ˌʌndəˈskɔ:/

-- draw a line beneath; emphasize

When we take notes, our teacher wants us to underscore items that are especially important.

当我们记笔记时，老师要我们在特别重要的项目下划线。

 

 

8. undersell /ˈʌndəˈsel/

-- sell at a lower price than 

When discount houses tried to undersell department stores, the latter reduced priced too and adopted the slogan "We will not be undersold."

当折扣商店尝试将售价降得低于百货商场时，百货商场也降了价，同时采用了这个口号：“别人不会比我们便宜。”

 

 

9. underdeveloped /ˌʌndədɪˈveləpt/

-- insufficiently developed because of a lack of capital and trained personnel for exploiting natural resourses

Our country has spent billions of dollars to help the underdeveloped nations improve their standard of living.

我们国家已花了好几十亿元去帮助发展落后的国家，改善他们的生活水平。

 

 

10. underprivileged /ˈʌndəˈprivilidʒd/

-- insufficiently privileged; deprived through social or economic oppression of some of the fundamental rights supposed to belong to all

The underprivileged child from the crowed slum tenement has many more problems to overcome than the child from the middle class home.

来自拥挤的贫民窟中的穷孩子比中产阶级的孩子有更多的问题要克服。