The investigation has suddenly switched to a new line of inquiry.

调查突然改用一种新的探询方法。

《柯林斯英汉双解大词典》

Given that these are so meagre, this might seem to be an unpromising line of inquiry.

既然他们是那么的贫困，看起来这似乎是一个没有好结果的调查。

youdao

The scientists say they do not expect their calculations to mark the end of this line of inquiry, and are looking to peers to refine methods and conclusions.

科学家说，他们不期待他们的估算结果会成为这项调查的终点，而是要和同行们一起来继续完善方法和推算值。

youdao

She says this will be her next line of inquiry whether female hormones, such as estrogen, somehow protect young women from the neurological damage created by exposure to lead.

VOA: standard.2009.12.19

The "major line of inquiry" is a firework display organised by Taunton Rugby Club.

BBC: M5 crash: Family's heartbreak for Tony and Pamela Adams

The Police Service of Northern Ireland has said the possible involvement of paramilitaries is a "key line of inquiry".

BBC: NEWS | UK | Northern Ireland | Orde to give briefing on robbery

Police said another line of inquiry was the fire had been started to lure police officers to the area.

BBC: West Belfast bomb alert