Further investigation is clearly warranted.

进一步调查显然是必要的。

《牛津词典》

The case does not merit further investigation.

这个案子不值得进一步调查。

《牛津词典》

Further investigation was hindered by the loss of all documentation on the case.

由于有关此案的材料全部丢失，进一步的调查受到了阻碍。

《柯林斯英汉双解大词典》

Later,once the plane left the gate, it was ordered to return for further investigation.

VOA: special.2010.05.08

The package is being made safe and will be handed to Strathclyde Police for further investigation.

BBC: Neil Lennon bomb police probe fifth suspect package

Defense Secretary Leon Panetta has put the confirmation of General Allen on hold, pending further investigation.

FORBES: David Petraeus: Everything You Need To Know About The Scandal

In a statement the council said the allegations warranted further investigation by a designated independent person.

BBC: Philip Hygate