A2 noun /ˈjuːnɪt/

unit

单元

Meaning

an individual thing or person regarded as a single and complete entity

Example

Each unit in the production line is carefully tested.

生产线上的每个单元都经过仔细测试。

A2 verb /ʌpˈset/

upset

烦扰

Meaning

to make someone worried, sad, or angry; to disturb

Example

The bad news upset everyone.

坏消息 upset 每个人。

A2 verb /ʌpˈdeɪt/

update

更新

Meaning

to make something more modern or current; to provide new information

Example

Please update your software regularly.

请定期更新您的软件。

A2 adjective /ʌnˈkʌmf.tə.bəl/

Uncomfortable

不舒服

Meaning

causing or feeling slight pain or physical discomfort; making someone feel embarrassed, awkward, or anxious

Example

The chair was so uncomfortable that I couldn't sit in it for more than ten minutes.

这个椅子太不舒服了，我坐在上面超过十分钟就坐不下来了。

A2 adjective /ˈjuːʒəl/

usual

常见

Meaning

habitually or typically occurring or done

Example

It’s our usual meeting spot.

这是我们常见的会议地点。

A2 adjective /ʌnˈhæp.i/

Unhappy

不快乐; 难过

Meaning

not happy; feeling sad or displeased; unfortunate or undesirable

Example

He was unhappy with the results of his exam.

他对考试结果感到不满。

A2 conjunction /ʌnˈlɛs/

unless

除非

Meaning

except if

Example

We won't go unless it stops raining.

除非雨停了，否则我们不去。

A2 adjective /ʌnˈlʌki/

Unlucky

倒霉; 不幸运

Meaning

having bad luck; unfortunate

Example

He was unlucky to miss the winning shot.

他很倒霉错过了获胜的投篮。

A2 adjective /ˈjuːs.ləs/

Useless

无用

Meaning

having no beneficial purpose; not useful

Example

This broken computer is completely useless.

这个坏掉的电脑完全是无用的。

A2 noun /ʌmˈbrɛlə/

umbrella

伞

Meaning

A device used for protection against rain or sun, typically consisting of a collapsible canopy mounted on a central rod.

Example

She opened her umbrella as it started to rain.

下雨时她打开了她的伞。

A2 noun /ˈʌndərweər/

underwear

内衣

Meaning

Clothing worn beneath outer clothes, typically next to the skin.

Example

He bought new underwear for the trip.

他为旅行买了新的内衣。

A2 noun /ˌʌndərˈstændɪŋ/

understanding

理解

Meaning

the ability to grasp the meaning, significance, or nature of something

Example

Her understanding of the issue was impressive.

她对这个问题的理解令人印象深刻。

A2 preposition /əˈpɒn/

upon

之后

Meaning

on or immediately after

Example

Upon hearing the news, he rushed to the hospital.

听到消息后，他赶到医院。

A2 noun /ˌʌpˈsteəz/

Upstairs

楼上

Meaning

on or to an upper floor of a building; the upper floor or floors

Example

She went upstairs to her bedroom to rest.

她上楼去她的卧室休息。

A2 adjective /ˈʌɡ.li/

Ugly

丑陋的; 可憎的; 可怕的

Meaning

unpleasant or repulsive in appearance; morally reprehensible

Example

The old building looked ugly after years of neglect.

这座老建筑在多年疏忽之后看起来很丑。

A2 adjective /ʌnˈhel.θi/

Unhealthy

不健康的; 有害的

Meaning

harmful to health; not in good health; detrimental to well-being

Example

Eating too much fast food is unhealthy for your body.

吃太多快餐对你的身体不健康。

A2 adjective /ʌnˈtaɪdi/

Untidy

凌乱的; 无序的;

Meaning

not neat or orderly; messy and disorganized

Example

Her untidy room was filled with clothes scattered everywhere.

她凌乱的房间充满了四处散落的衣服。

A2 noun /ˈʌndərwɛr/

Under wear

内衣

Meaning

clothing worn under other clothes, next to the skin

Example

She bought new underwear from the department store.

她在百货商店买了新的内衣。

A2 noun /ˈjuːzər/

user

用户

Meaning

a person who uses or operates something

Example

He is a frequent user of this app.

他是这个应用程序的常用用户。