complex
/ˈkɑmplɛks/
a conceptual whole made up of complicated and related parts
中文释义：综合体；复合体
The new sports complex includes a swimming pool and a gym.
新的体育综合体包括一个游泳池和一个健身房。
The industrial complex covers an area of 50 square kilometers.
这个工业综合体占地50平方公里。