| 21. | It has its source in envy [jealousy]. |
| 它的根源在于嫉妒。
|
| 22. | We must look for the source of the trouble. |
| 我们必须追寻这桩麻烦事情的起因。
|
| 23. | The explorers searched for the source of the river. |
| 探险者们搜寻那条河的源头。
|
| 24. | The stream takes its source from the lake. |
| 这条小溪发源于该湖泊。
|
| 25. | I haven't been able to track down the source of the rumor. |
| 我未能对谣言的来源追查到底。
|
| 26. | The source of this information is withheld. |
| 这消息的来源没有透露。
|
| 27. | This source of inspiration has dried up. |
| 这一灵感的源泉已经枯竭。
|
| 28. | For many elderly people, financial difficulty is their major source of worry. |
| 对于许多上了年纪的人来说，经济困难是他们担忧的主要原因。
|
| 29. | They opened up his stomach to get at the source of the trouble. |
| 他们给他的胃开了刀，以便找出病根。
|
| 30. | He has pointed out that the tree is a useful source of income, as tourists have been coming from all parts of the country to see it. |
| 他指出，由于人们从全国各地纷纷前来参观这棵树，它成了一个有用的财源。
|