We are going on a trip together.

Education is an important element in building the foundation of society.

I owe my education to my parents.

This area has been rapidly developing in recent years.

This area is still in a developing stage.

I like watching children play in the park.

He always lives without forgetting his child's naive mind.

A back vowel is a vowel that is pronounced at the back of the mouth.

He locked the door and shut us out.

He checks the locking up of the house every night.