To be dependent on something or someone means to need them in order to succeed or be able to survive.
The local economy is overwhelmingly dependent on oil and gas extraction.
当地经济严重依赖石油和天然气的开采。
Just 26 per cent of households are married couples with dependent children.
只有26的家庭是有孩子要抚养的已婚夫妇。
If one thing is dependent on another, the first thing will be affected or determined by the second.
companies whose earnings are largely dependent on the performance of the Chinese economy.
盈利很大程度上取决于中国经济状况的公司。
dependents
Your dependents are the people you support financially, such as your children.
Companies with 200 or more workers must offer health benefits to employees and their dependents.
拥有200名或以上员工的公司必须为其雇员及其家属提供医疗福利。