It's hard to say, but I think you're wrong.

He always used to say, 'It's easy to say, but hard to do.'

He is good at expressing his feelings well.

His body build is like that of a sports player.

In genetics, linkage disequilibrium is a very important concept.

This reaction has reached chemical equilibrium.

He likes to take a walk in the park at dusk.

I love eating snacks.

Every morning, he has a habit of reciting the Heart Sutra.

His curiosity always drives him to learn new things.