touch base

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释义

试探性地打个招呼（一般指骚扰
电话推销东西，试探你要不要）
to talk to someone in order to find out how they are or what they think about something (usually + with )

例句
WaIt:Then why are you here?
Pink:I don’t know.To, like touch base.(Breaking Bad)
沃特：那你为什么来着？
平克：我也不知道，大概是想试探性打个招呼吧。（绝命毒师）