He always keeps a smile on his face.

It's difficult to remember new words.

Let's examine the co-occurrence pattern of this word.

These two words always co-occur.

She had two apples.

He and his twin brother are as alike as two peas in a pod.

He and his brother are as alike as two peas in a pod.

He has the alias 'Genius' because of his talent.

He cut the apple into exactly two equal parts.

His heart was broken in two.