When she laughs, her zygomaticus minor muscle stands out.

I strained a muscle at the gym yesterday.

His behavior always stood out in a bad way, and there were voices of criticism from those around him.

They (referring to women or girls) are my best friends.

He was laughing at my idea in a demeaning way.

I go to the gym every day to build my muscles.

This river is three long.

He is always cheerful and believes in the proverb 'Fortune comes in by a merry gate.'

Him laughing at other people's mistakes is just like the pot calling the kettle black.

Since he is always laughing, it can be said that 'fortune comes in by a merry gate'.