I reported to the police using the gray phone.

He finished his work at a devilish speed.

I bought a new electric drill.

He solved a large number of problems.

We celebrate our wedding anniversary on the eighteenth day of the month.

I will hold my birthday party on the twenty-eighth day of the month.

There is an old legend in this village.

Nitrogen makes up about 78% of the Earth's atmosphere.

I boiled water using the '爨'.

There are many rice plants growing in the paddy field.