Last night, I unfortunately had an inauspicious dream.

On this road, the principle is to keep left.

Recently, my neuralgia has been so bad that I can't concentrate on my work.

He went to school with his new schoolbag.

It's convenient to live in a city where transportation facilities are well-developed.

My mother does the scrubbing and washing every day to keep the house clean.

She is conducting research on the world's oldest profession.

Old World monkeys primarily inhabit Africa and Asia.

The World Trade Organization is an important organization that sets the rules for international trade.

The World Health Organization is working to improve public health worldwide.