He started digging a trench.

My apartment is covered with a relatively small tatami mat.

I take a walk in the park every day.

A journey of a thousand miles begins with a single step.

Tidal force is the force that causes the tides of the Earth's oceans.

She is studying traditional Chinese medicine and is utilizing that knowledge.

She fractured her pubis.

I was late for school because the train was delayed.

A hinge joint, like the human elbow or knee, is a type of joint that only bends in one direction.