The peony doesn't want to Muse additional people too bad, but ask clear cause all okay.

牡丹不想把别人想得太坏，但问清楚缘由总是好的。

youdao

So you head to a doctor, who may run a test or two. But no clear cause for the symptom shows up.

于是你去看医生，医生也许会给你做一两项检查，但却找不出导致这些症状的原因。

youdao

A military alliance that stretches across the Atlantic will not always be able to unify around such a clear cause.

横跨大西洋的军事联盟并不总是在诸如此类的目标上形成统一认识。

youdao

But Ban Ki-Moon said Tuesday that the evidence is "quite clear" that humans are the main cause of temperatures rising faster than expected.

VOA: special.2009.12.12

The violence erupted on Friday, but the cause is not clear.

VOA: standard.2010.06.15

Some run in families, but most appear without warning and with no clear cause.

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There was also "clear cause for concern" over Iranian nuclear intentions, the MPs said.

BBC: NEWS | UK | Al-Qaeda 'increased threat to UK'

As you say, we have no clear cause and effect indication here.

NPR: High Court Changes Mind on Detainee Appeals