be present in

基本解释

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 does identify many of the key aspects and components that will be present in any well designed SOA-based system.
然而，它定义了很多关键的概念和组件，它们在任何精心设计的SOA系统中都应该出现。
Of course, you can never control external factors like network latency, which will always be present in any approach.
当然，某些外部因素总是不可控的，比如网络延时，在任何方法中都会存在这些因素。

Several different species of coral can be present in the different colonies that form the reef structure.
when you allow yourself to be present in situations and be surprised from them, you know.
那是当你把自己放在一种情境下，让自己感到惊奇的时候。
艺术从自由起步 - SpeakingMax英语口语达人
It's not as simple as DNA going to RNA going to protein, because proteins need to be present in order to make these things happen as well.
基因表达不是简单的从DNA到RNA,再到蛋白质,因为整个过程需要,不同酶的催化作用
耶鲁公开课 - 生物医学工程探索课程节选

They will thus accumulate without being winnowed out and will eventually be present in overwhelmingly lethal numbers.
ECONOMIST: Evolutionary biology