n.(名词)

1. 活动
2. 活跃，热闹状况
3. 活动力，活力
4. 敏捷
5. 行动
6. 特殊活动；带消遣性的活动
7. 机能
8. 【化】活性
9. 动作
10. 能动性，活动性
11. 放射性
12. 功能
13. 机构
14. 活动范围
15. 活动是英国制造的航母

n.(名词)

1. [U]活动性; 活力 being active or lively
2. [C]活动; 工作; 消遣 specific thing or things done; action; occupation

Noun:

1. any specific behavior;

   "they avoided all recreational activity"
   

2. the state of being active;

   "his sphere of activity"
   "he is out of action"
   

3. an organic process that takes place in the body;

   "respiratory activity"
   

4. (chemistry) the capacity of a substance to take part in a chemical reaction;

   "catalytic activity"
   

5. a process existing in or produced by nature (rather than by the intent of human beings);

   "the action of natural forces"
   "volcanic activity"
   

6. the trait of being active; moving or acting rapidly and energetically;

   "the level of activity declines with age"
   

1.热闹状况;活跃
activity is a situation in which a lot of things are happening or being done.

e.g. ...an extraordinary level ofactivity in the government bonds market.
政府公债市场异常活跃
e.g. ...the electricalactivity of the brain.
脑电波的活动

2.活动
Anactivity is something that you spend time doing.

e.g. You can take part in activities from canoeing to bird watching.
你可以参与从划独木舟到观鸟等各种活动。

3.（团体为达到某种目的而采取的）活动，行动
Theactivities of a group are the things that they do in order to achieve their aims.

e.g. ...a jail term for terrorist activities...
因参与恐怖活动而被判的刑期
e.g. On April 29, the activities of the company were suspended on the orders of the Bank of England.
4月29日，奉英国银行之命，该公司的各项活动被暂停。

1. 动作：可记录的数据可以是动作(activity) 、标签( tag) 、报警(alarm) 等. 动作包括命令、宏的执行,系统信息采集等. 记录的标签数据可以用来生成趋势图,而报警记录则可以用于故障分析和事故追踪, 它们分类存储在不同的记录文件里.

economic activity

经济活动

The streets were noisy and full of activity.

街上熙熙攘攘，车水马龙。

Muscles contract and relax during physical activity.

身体活动时肌肉收缩放松。

leisure/outdoor/classroom activities

休闲 / 户外 / 课堂活动

The club provides a wide variety of activities including tennis, swimming and squash.

这家俱乐部的活动丰富多彩，诸如网球、游泳、壁球等。

illegal/criminal activities

不法 / 犯罪活动

...an extraordinary level of activity in the government bonds market.

政府公债市场异常活跃

...the electrical activity of the brain.

脑电波的活动

You can take part in activities from canoeing to bird watching.

你可以参与从划独木舟到观鸟等各种活动。

...a jail term for terrorist activities...

因参与恐怖活动而被判的刑期

On April 29, the activities of the company were suspended on the orders of the Bank of England.

4月29日，奉英国银行之命，该公司的各项活动被暂停。

Regular exercise conditions the body for strenuous activity.

经常锻练使身体适应剧烈活动.

Some drugs can cause the inhibition of normal bodily activity.

有些药剂会对正常的身体功能产生抑制作用.

The house has been full of activity all day.

房子里整天都很热闹.

The human brain is the centre of higher nervous activity.

人脑是高级神经活动的中心.

This business is a cover for unlawful activity.

这家商行是搞非法活动的隐蔽处.

Working with them was our most satisfying activity.

和他们一起劳动是使我们感到最满意的一项活动.

We must expose this shameful activity to the newspapers.

我们一定要向报社揭露这一无耻行径.

I learned to windsurf on an activity holiday.

我参加主题活动假期时学会了风帆冲浪.

This sort of activity damages the reputation of the collective.

这种行为有损于集体的荣誉.

The construction site was a hive of activity.

建筑工地上一片繁忙景象.

The office was really humming with activity.

办公室里真是一片忙碌景象.

The days that preceded were filled with activity.

前几天排满了活动.

the cumulative effect of human activity on the world environment

人类活动对世界生态环境日积月累的影响

a sudden flurry of activity

突然的频繁活动

1. The hall has been full of activity all day.
   大厅里整天都很热闹。
2. His activities include playing football and painting.
   他的活动包括踢足球和绘画。

形容词+～

• social -ties社会活动

介词+～

• activity">full of activity很热闹

• A regrettable by-product of their activities.

  出自：H. W. Fowler

• The widespread activities of the state security police.

  出自：Listener

n.(名词)

1. activity的基本意思是“活动性,活力”,指人或事物本身所固有的活力,此时为不可数名词。
2. activity也可指人们为了达到某种目的而从事“繁忙的〔充满活力的〕活动”或“工作,消遣”等,此时activity为可数名词,常用于复数形式。

1. 复数形式的acticities有“活动（范围）”的意思，如social activities，school activities和human activities等；
2. 也可以单数形式出现，如social activity和business activity，但是比较少见a social activity。

• ☆ 1540年左右进入英语，直接源自中世纪拉丁语的activit，意为处于活跃的状态。