solar systems
operating systems
immune systems
transportation systems
educational systems
A: Have the new IT systems been installed?
A：新的IT系统安装好了吗？
B: Yes, they are now fully operational.
B：是的，它们现在已经完全投入运行了。
1) 由各部分组成的整体。
2) 组织、机构或模式。
3) 计算机或电子系统的集合。
1. 系统，体系
2. 机构，组织
noun
1. A set of things working together as parts of a mechanism or an interconnecting network.
Synonym: structures, networks, organizations