ADJ. (表示在与已提及或已知的人或事物同一类中)别的,其他的,另外的,额外的. You use other to refer to an additional thing or person of the same type as one that has been mentioned or is known about.
These bacteria can be thought of as an additional digestive organ.
这些细菌可以被认为是一个附加的消化器官。
This additional work is relative to the current project.