您要查找的是不是：
- The news comes from a reliable source. 这消息来自可靠的来源。
- The island has been ruined by tourism. 该岛毁在旅游业上了。
- Tourism is a major source of income for the area. 旅游业是这个地区的主要收入来源。
- Tourism is the major source of this town's revenue. 旅游业是这个小镇主要的收入来源。
- Tourism is at its peak in August. 旅游业在八月份达到高峰。
- The country's economy is dependent on tourism. 该国经济依赖於旅游业。
- Tourism was then still in its infant stage. 旅游业当时还处在初创阶段。
- My wages are the principal source of my income. 薪金是我收入的主要来源。
- The island has been untouched by tourism. 该岛未受旅游业的影响。
- Solar energy is a new kind of source of energy. 太阳能是一种新型能源。
- The sun is the ultimate source of energy. 太阳是能量的最基本来源。
- A source of irritation or annoyance. 令人生气的事或者引起烦恼之事
- The groundwork or source of something. 基础，根源某事物的基础工作或根源
- Where is the source of the Rhine? 莱茵河发源于何处？
- He's been a source of discord and worry. 他成为不和和烦恼的根源。
- A source of harassment, annoyance, or pain. 使人痛苦的东西骚扰，烦恼或痛苦的来源
- Is the water polluted at source or further downstream? 河水是在源头还是在流出之後受到污染的？
- That nation is famous for its tourism. 那个国家以旅游业闻名。
- Hard work is the ultimate source of success. 努力工作是成功之本。
- The proof came from a plenteous source. 证据来自丰富的渠道。
