怎知

不试试 怎知 不行

(狭路相逢勇者胜) ── Previous context

“You'll never know unless you try.”

不去试一试 又 怎知 会不行呢

(六爷爷) ── Previous context

“if we don't try, how do we know it won't work?”

你 怎知 戴獬豸面具的人是我

(我才能寻到你) ── Previous context

“How did you know I was the one in the xiezhi mask?”

你 怎知 我这画中女子

(还挺好笑的) ── Previous context

“How do you know the woman in my painting”