在於

lie in, consist in

t͡s a ɪ̯ ⁵ ¹ y ³ ⁵
verb Rare #28,470
lie in, consist in Often used in the pattern “問題在於…” (“the problem is that…”).
CH: 成功在於每天堅持努力。
EN: Success lies in making an effort every day.

问题不在於我相信什麽而在於我能证明什麽

The issue isn’t what I believe, but what I can prove.

— 好人寥寥 (1992)

"红色条规"仍被军官--我的问题在於我是个上校,所以我得去洗个冷水澡…

The “red rules” are still enforced by officers—my problem is that I’m a colonel, so I have to go take a cold shower…

— 好人寥寥 (1992)

问题在於凡是正直的人都会拒绝--他们无权怀疑上级的命令

The problem is that anyone with integrity would refuse—they have no right to question their superiors’ orders.

— 好人寥寥 (1992)