He stared at the corpse, trembling with fear.

The bottom quark plays an important role in particle physics.

This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.

I'm looking forward to meeting my friends this weekend.

In physics, the charm quark is one of the six quarks.

He bought six apples.

It seems that this river is flowing backwards.

Yu helped me with my homework.