I am majoring in physical chemistry at university.

Chemical pollution has a serious impact on the health of the Earth.

Zoo staff must clean up the animals' excrement every day.

I am thinking about what to make her birthday gift.

She felt the pathos of things when she saw the cherry blossoms falling.

Please wear a helmet in this area as there is a risk of falling objects.

She forgot her carry-on.

He overcame the obstacles and achieved his goal.

There is a small foliage plant in my room.

This water has too many impurities.