His scholarly discussion shows a great depth of insight.

We need to discuss this issue in depth.

His barbaric action should not be forgiven.

His farewell party will be held tomorrow.

Tomorrow, I will go to the airport to see my friend off.

This plant naturally hybridized and a new species was born.

These two species can naturally hybridize to produce a new species.

He has a strong ambition and is always seeking self-improvement.

The altimeter on my airplane broke.

He picked up the steel ball and stared at it intently.