dependence

1. N-UNCOUNT Your dependence on something or someone is your need for them in order to succeed or be able to survive. 依靠

...the city's traditional dependence on tourism. …这个城市对旅游业的传统依赖。

2. N-UNCOUNT If you talk about drug dependence or alcohol dependence, you are referring to a situation where someone is addicted to drugs or is an alcoholic. (毒、酒) 瘾

French doctors tend to regard drug dependence as a form of deep-rooted psychological disorder. 法国医生倾向于将毒瘾看作是一种根深蒂固的心理疾病。

3. N-UNCOUNT You talk about the dependence of one thing on another when the first thing will be affected or determined by the second. 依赖

...the dependence of politicians on rich donors to fund their increasingly expensive campaigns. …政客们为资助他们日益昂贵的竞选活动而对富有的捐赠人的依赖。