[mì qiè]
（關(guān)系近） close; intimate; establish closer (links with)
maintain close ties with the masses
密切聯(lián)系群眾
build closer relations between the two countries
密切兩國(guó)關(guān)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(guān)系密切。
（仔細(xì)） carefully; intently; closely
pay close attention to; watch closely
密切注視
[天； 數(shù)] osculation