1·What is their main source of income?
他们的主要收入来源是什么？
—— 《牛津词典》
2·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。
—— 《牛津词典》
3·Plants are the ultimate source of all foodstuffs.
植物是所有食物的最终来源。
—— 《柯林斯英汉双解大词典》
4·Fruit is a convenient source of vitamins and energy.
水果是维生素和能量的便利来源。
—— 《牛津词典》
5·Fish was a major source of protein for the working man.
鱼曾是劳动者获取蛋白质的主要来源。
—— 《柯林斯英汉双解大词典》
1·The source had long been known but not exploited.
人们早就知道这一消息来源，但没有加以利用。
2·"The Iraqis have tacked five other countries on to our agreement," one source said.
“伊拉克人附加了五个其他的国家进入到我们的协议中，”一个消息来源说。
3·"If we end up with a weaker framework with less stringent compliance, then that is not so good for the chances of hitting 2c," a source close to the EU negotiating team said.
“如果我们最终获得的是一个更软弱的框架并且不严格遵守规定，那么达成控制在2摄氏度以内的目标就机会不大了，”一个接近欧盟谈判小组的消息来源说道。
4·That's really the very reliable source.
那才真正是非常可靠的消息来源。
5·The two were first spotted getting cozy Friday night at los Angeles's Mondrian Hotel, where they laughed and talked the night away, finally closing down the bar, says the source.
他们俩人第一次被发现是在一个惬意的周五晚上出现在洛杉矶蒙德里安酒店，他们整晚都交谈甚欢，最后去了酒吧，消息来源是这样说的。
1·The creative process has always been accepted as a source of all important work in the arts.
在艺术方面，创作过程一直被认为是所有重要工作的源头。
2·But radiation as a general term actually refers to anything that spreads away from its source.
但是辐射作为一个通用术语，实际是指所有从其源头扩散开来的东西。
3·A lack of information concerning my own was a source of unhappiness to me even during childhood.
即使在童年时期，缺乏关于我自己的信息也是我不快乐的一个源头。
4·The most recent island, Hawaii, would be at the end of the chain and is now over the volcanic source.
最近的一个岛屿是夏威夷岛，它位于这条岛链的末端，现在位于火山源头的上方。
5·But when they looked for the source, there was nothing there, no planet, no star.
但是当他们寻找其源头时，却发现那里什么都没有：没有恒星，也没有行星。
1·Following a perfume trail to its source, male wasps in Australia ravish a king spider orchid.
在澳大利亚，有一群雄蜂随香寻源，强占了一株王蜘蛛兰。
2·The scholars referred to that source language as Proto-Indo-European. Proto-Indo-European is a reconstructed language.
学者们把这种源语言称为原始印欧语。原始印欧语是一种重建的语言。
3·As the plate moved slowly northwest, new volcanic islands would have formed as the plate moved over the volcanic source.
当板块缓慢向西北移动时，新的火山岛就会随着板块的移动，在火山源处形成。
4·The system login uses information such as source ID (SID), domain and system user name for authentication, so it is considered secure.
系统登录会使用到诸如源 ID（安全识别符），域和系统用户名等信息进行身份验证，因此被认为是安全的。
5·The electric wand in the experiments essentially uses electricity to push the flame away from the burner, detaching it from the fuel source, so it goes out.
实验中的电棒本质上是用电把火焰从燃烧器中推开，把它从燃料源中分离出来，然后火就熄灭了。