But the effects of neurogenesis on mood are murkier.

但神经发生对情绪的影响则不明确。

youdao

There are people of goodwill on both sides, and actors with murkier motives.

（支持与反对）双方均有人出于善意，也都有动机不纯者。

youdao

If the industry's long-term health is assured, the short term is murkier--as ever in India.

虽然说航空业的长期健康是有保证的，但印度航空业的短期状况仍不容乐观。

youdao

Then the mystery got murkier, a series of Internet videos offering disjointed clues.

VOA: standard.2010.07.13

It's going to be perhaps a lot murkier.

可能会扑朔迷离。

普林斯顿公开课 - 国际座谈会课程节选

Today, OCZ made a new filing with the SEC, which turned the picture even murkier.

FORBES: OCZ Drops Another 21%; Says No Idea When It Can File 10-Q

All of that is well established, but from here the evidential waters get murkier.

FORBES: Does Gluten Deserve to be on the Public Health Enemies List?

The other parts of the story, whether it's joblessness or employment, are a bit murkier.

BBC: UK unemployment: Jobs up, pay down