1.physical health身体的健康

mental health精神的健康

both physical and mental health身心健康

Examples：

Physical health is equally important as well as mental health.

身体健康和精神健康同样重要。

To keep physically health, first of all we should have a balanced diet.

保持身体健康,首先,我们应该有一个均衡的饮食。

Laughing is good for your mental health.

笑有利于精神健康。

2. a balanced diet均衡饮食

Examples：

eat a healthy balanced diet合理饮食

maintain a healthy balanced diet保持健康均衡的饮食

a healthy balanced diet guide一个健康均衡的饮食指南

3.junk food是指垃圾食品，有一定的热量但是缺乏营养

常见的  junk food

Kentucky Fried Chicken 肯德基

McDonald's麦当劳

potato chips炸土豆片

4. achieve [ə'tʃi:v]

英汉解释

vt. 达到(目标)；完成(目标)

vi. 达到目的；如愿以偿

英英解释

v. to gain with effort;  to  succeed in doing sth

同义词

v. accomplish，attain，reach

Examples：

The government's training policy he claimed was achieving its objectives.

他称政府制定的培训方针即将达到预期目标

She finally achieved her ambition to visit South America.

她终于实现了去南美洲旅游的梦想

I have been working all day but I feel as if I have achieved nothing.

我干了整整一天，但感觉得好像什么都没有做成。

5. positive ['pɔzətiv]

英汉解释

adj. 积极的；肯定的

英英解释

adj. good or useful; hopeful or optimistic; completely certain or sure that something is correct or true

同义词

adj. confirming，positivist

反义词

adj.   disconfirming，negative，neutral

Examples：

On a more positive note, we are seeing signs that the housing market is picking up.

更乐观地说 我们看到了房地产市场正在好转的迹象

The past ten years have seen some very positive developments in East-West relations.

在过去的十年中，东西方关系有了一些非常积极的发展。

There is a very positive response to our new design people seem very pleased with it.

我们的新设计得到了非常积极的回应，看来人们对该产品非常满意。

6. negative ['neɡətiv]

英汉解释

adj.消极的；否定的；

英英解释

adj.expressing refusal to do something; haracterized by the absence of distinguishing or marked qualities or features; lacking positive attributes

同义词

adj.  disconfirming，electronegative

反义词

adj  affirmative，confirming，electroneutral，neutral有一层意思是表示否定

Examples:

We received a negative answer to our request.

我们的请求遭到了拒绝。

The metaphors of darkness are overwhelmingly negative: danger, decay, and death.

黑暗毫无疑问是消极的象征：危险、衰败、和死亡。

7. optimistic [,ɔpti'mistik]

英汉解释

adj. 乐观的；乐观主义的

英英解释

adj. expecting the best in this best of all possible worlds; expecting the best

同义词

adj . affirmative

反义词

adj. pessimistic

Examples:

She is very optimistic about her chances of winning a gold medal.

她对赢得金牌很乐观。

He is optimistic, the fill ideal youth.

他是个乐观、充满理想的青年。

Right. We should have an optimistic view of life.

是的。可我们应该拥有一个乐观的人生观。