Not all chemicals normally present in living organisms are harmless.
并非所有正常存在于活的有机体中的化学物质都是无害的。
This special form of vitamin D is naturally present in breast milk.
这种特殊形式的维生素D天然存在于母乳中。
The doctor has arrived and is living at present in his old quarters.
医生已经到了，目前住在他原来的住处。
Analysis showed that traces of arsenic were present in the body.
分析显示，尸体中有微量砒霜。
Alcoholism is clearly present in society today.
酗酒在当今社会是非常常见的。
I bought him a present in return for his generous help.
我给他买了一件礼物，作为他慷慨帮助的回报。
目前他正在上海。
He wrapped the present in pretty paper for his girlfriend.
他用精美的纸给女朋友包好礼物。
And they are now present in the Arab world.
这种困境现在出现在阿拉伯世界之中。
I sent him a present in return for his help.
我送给他一份礼物以回报他的帮助。
The question may now be put: Do we live at present in an enlightened age?
于是人们可能要问：我们现在是否生活在一个已经启蒙的时代？
Chances of failure and disaster are ever present in all space navigation.
所有的宇宙航行都始终存在着失败和发生灾难的可能性。
Common features are requirements that are present in all members of the product line.
公共功能是产品线的所有成员中都存在的需求。
Relationships are always present in communities.
关系在社区中是永远存在的。
Identify a property that will be present in all operations.
指定将出现在所有操作中的属性。
Illegals could also be present in other nations, just like in the Cold War?
就像在冷战中一样，非法者也会在别的国家出现？
It's also present in spinal fluid and, in very small quantities, in the blood.
这种蛋白同时也出现于脊椎液中，并且极小量存在于血液里。
I show us present, fully present, in front of, and before, the background of America.
我展示我们的存在，完整的存在，以美国为背景，从前前后后不同的侧面表现主题。
Division is only found in the mind, it is not present in reality.
分歧只存在于心中，现实中它并不存在。
Generation gaps are present in every part of the world.
代沟存在于世界各地。
It was a moment when that felt more present in the culture than it is now.
比起现在，那是一个感觉这些事情在文化中更能有所体现的时期。
What does it mean if an element is not present in a partial update?
如果一个元素没有在部分更新中描述，这意味着什么？
This log file should contain the messages present in the configuration script (Listing 1).
该日志文件应当包含配置脚本(清单1)中呈现的消息。
But this argument belies the extreme variability that is present in human behavior.
但是这个理由不足以证明在人类行为中表现出的极端可变性。
Checking what class files are present in the server's location.
的错误会检查什么类文件出现在服务器的位置中。
Black men owe it to their children to be present in their lives.
黑人男人欠他们孩子的就是没有跟孩子生活在一起。
The relationship between these two capabilities is already present in the capability map.
这两个功能之间的关系已经在功能映射中存在。
The new business item could add new attributes that are not present in the template.
新建的业务项目可以添加新的模板中没有的属性。
It doesn't require that any individual item fields be present in a feed.
它不需要在摘要中出现的任何单独项的字段。
Cigarettes are present in the most mundane aspects of society.
香烟在世俗社会的方方面面均有涉及。
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