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来就来

if you're coming, then come

→ 来
phrase Rare #21,758
if you're coming, then come Used to express acceptance, permission, or an unrestricted action; in the pattern 说来就来、说走就走, it means “come and go as you please.”
CH: 你想来就来，不用提前告诉我。
EN: Come whenever you want; you don't need to tell me in advance.

要来就来吧

If you're coming, then come.

— 空之境界 第五章 矛盾螺旋 (2008)

来就来

Bring it on.

— 洗澡 (1999)

警察来就来

If the police come, so be it.

— 唐人街探案 (2015)

你想来就来

Come whenever you want.

— 后来的我们 (2018)

我要离开这里，你想来就来

I'm leaving here; come if you want.

— 上帝之城 (2002)

你不能说来就来说走就走

You can't just come and go as you please.

— 城市英雄 (1993)