to start using a supply of something
凭借; 使用，动用，利用

例句：

We must draw upon their experience. 我们应利用他们的经验。

I was able to draw upon my previous experience. 我能凭借我原先的经验。

To American politic, draw upon the strong religion public opinion, the American church in China had a rather influence on the politic that American to China. 对美国政治方面，凭借强大的宗教舆论，美国在中国的教会是影响美国对华政策的一个不小的因素。

We should keep an open mind, draw upon development practices of other continents, share development resources and promote regional cooperation. 我们要秉持开放精神，积极借鉴其他地区发展经验，共享发展资源，推进区域合作。

With China’s strengths in infrastructure and manufacturing and New Zealand’s advantages in agricultural science and technology, IT and clean energy, the two countries have much to offer to each other and may draw upon each other’s strong points. 中国在基础设施建设和制造业领域，新西兰在农业科技、信息技术、清洁能源等领域，各自有着突出优势，两国可以取长补短、互为所用。

One had to draw upon some knowledge of human psychology. 我们得利用人类心理学的某些知识。

She would have to draw upon all her courage and determination. 她将不得不拿出自己全部的勇气和决心。

I shall draw upon you for assistance when necessary. 假如需要我将请求你的帮助。

They may draw upon historical evidence to defend their point of view. 他们也许利用历史证据来维护他们的观点。

People carrying more weight could have more energy and nutritional stores to draw upon. 可能是肥胖者存储更多的能量和营养物质以供消耗。