His face was full of happiness.

His lateness is due to traffic congestion.

In order to solve problems, it is important to listen to the opinions of many people, as the saying goes, 'two heads are better than one'.

He rejoiced when he heard about the success.

He started a special exercise to train his serratus posterior inferior muscle.

By strengthening the posterior scalene muscle, you can reduce neck and shoulder pain.

He is doing a special exercise to train his occipitofrontalis muscle.

Kei's birthday party was filled with everyone's jubilation.

Kinshi is my best friend.

His words can be understood as a metaphor.