Sentence examples for a principal lesson learned from inspiring English sources

A principal lesson learned from the Beijing experience is the importance of rapid response to SARS.

The principal lesson learned during the development of flash is the importance of good software practices.

The principal lesson learned from the meeting was that, for most substances, data are insufficient to predict health effects from the concentration of the substance in hair.

"But it is a lesson learned, even at his age, he can still learn a lesson".

A lesson learned.

"It's a lesson learned pretty quickly".

Parnell said it was a lesson learned.

But it was a lesson learned".

"There was a lesson learned," she added.

It was definitely a lesson learned.

It's a lesson learned.