He took a deep breath and murmured, 'Amen.'

He was muttering something to himself.

He was walking while muttering something.

The suction power of this vacuum cleaner is very strong.

He took a deep breath and inhaled the fresh air.

I gave a farewell gift to my friend who is going to study abroad from tomorrow.

His eyes are a deep blue.

She received a farewell gift from her friend for studying abroad.

I can't forget the farewell words with him.

I plan to go to Vietnam next year.