VOA慢速英语:Vitamins are Important to Good Health

depend on vt. 依靠;信赖
例句：You can depend on him.
你可以信赖他。

2. When they work together, chemical reactions take placesmoothly.

take place 发生;举行
例句：When will the basketball game take place?
篮球赛何时举行?

3. Body systems are kept in balance.

in balance 平衡
例句：Not in balance or in proper balance. 
失衡的不平衡的或不均衡的 

4. Funk believed the substance belonged to a group of chemicalsknown as amines.

belong to (在所有权等方面)属于
例句：The bicycle belongs to Amy.
这自行车是艾米的。

5.  Scientists say vitamins help to carry out chemical changeswithin cells.

carry out 实现
例句：She had finally carried out her promise to quit smoking.
她最终实现了戒烟的诺言。

6. If we do not get enough of the vitamins we need in our food, weare at risk of developing a number of diseases.

at risk of 处于......危险之中
例句：He saved my life at the risk of losing his own. 
他冒着生命危险救了我的性命。 

7. One of the first people involved in that search was James Lindof Scotland.

involve in 涉及；卷入
例句：We only discuss the problem which involve in everybody. 
我们只讨论与我们每个人有关的问题. 

8. That is, it is better to eat vitamin-rich foods to preventdisease instead of eating them to cure a disease after it hasdeveloped.

instead of 代替
例句：He will go instead of you.
他将代你去。

9. In addition, many foods and food products now have extravitamins and minerals added.

in addition  另外
例句：They eat a great deal of fruit in addition.
他们还吃大量的水果。

10. They said people should be sure to discuss what vitamins theytake with their doctors.

be sure to 确定...将会发生
例句：Sleeplessness is sure to tell on your health. 
失眠肯定会影响你的健康。