He bought new glue for the project.

A river dolphin is a rare type of dolphin that lives in freshwater.

I need a replacement blade for my razor.

If the book is cheap, I should buy it.

The rain is dripping sadly.

The vice-principal plays a crucial role in helping run the school.

This Tang mirror is a gift from China.

He injured his cephalothorax.

We need a joint struggle to overcome this difficulty.

We must struggle jointly to overcome this difficulty.