Traders seemed at a loss to explain the market's erratic performance.

"But the generic text explaining the student's performance was for a reading test rather than a math test."

'He's not very bright' is one of the thickest things a person can say in explaining someone's performance.

Harper called me the next day; she felt that she had to explain the board's performance.

Many factors have been put forth to explain the Norden's poor real-world performance.

The Godolphin team were unable to explain his "dismal" performance.

That may partly explain its poor performance so far.

Hunsicker replied, as he struggled to explain the division's disappointing performance.

Stalin's campaign of forced collectivization was a major factor explaining the sector's poor performance.

I am well aware that Europe has a competitiveness problem, which largely explains its mediocre performance in terms of growth and jobs.