中译英 急！！

1.就我们所知，地球是人类唯一可以居住的星球。（as far as)
As far as we know, the earth is the only planet where we can live.

2.田野被一层薄薄的雪覆盖着。（be covered with)
Fields are covered with a thin layer of snow.

3.大城市汽车很多，严重污染了空气。（pollute)
The large number of vehicles in big cities heavily pollute the atmosphere.

4.孩子们以自己方式保护他们的地球母亲。(protect)
Children take their own actions to protect the earth.

5.即使是一件小事情，也可以使环境改观。（make a difference,environment)
Even if it is a small thing, it could still make a difference to the environment.

6.爸爸现在非常注意他的体重。(pay attention to)
Dad pays much attention to his weight now.

7.如果你要保持健康，每天一定得摄入营养均衡的食物.(be sure to,a good balance of)
If you want to keep fit, everyday you should be sure to consume foods with a good balance of nutrition.

8.有氧运动适合许多人。(to fit for)
Aerobic exercise fits for many people.

9.我爷爷和奶奶的身体很好。他们还时不时的外出旅游.(from time to time)
Both of my grandpa and grandma have good health, they go out for travelling from time to time.

10.专家们认为健身走路在许多方面有益于健康。(in many ways)
Many experts believe that walking is good for health in many ways.

As far as we know, the earth is the only planet which human beings can live.
The field is covered with thin snow.
There are many cars in big city which pollutes air seriously.
Children protect their mother -the earth in their own ways.
Though it's not a big event,it still can make a difference in environment
Father is paying more attention to his weight now.
If you want to keep healthy,you're sure to take a good balance of food.
有氧运动(不知道怎么翻译)is fit for many people.
My grandpa and grandma are very healhty now.They will go out for trip from time to time.
The professions think that walking is good for our healh in many ways.