[mì qiè]
（關系近） close; intimate; establish closer (links with)
maintain close ties with the masses
密切聯系群眾
build closer relations between the two countries
密切兩國關系
act in close coordination
密切配合
become very intimate
變得非常密切
I'm close with her.
我和她關系密切。
（仔細） carefully; intently; closely
pay close attention to; watch closely
密切注視
[天； 數] osculation