I bought new gaiters for mountain climbing.

He is good at playing the chromatic scale on the piano.

The Japanese grosbeak is one of the beautiful birds in Japan.

The tiger beetle is a fast-running insect.

He is very handsome, and women are attracted to him.

He was arrested as an abettor of the crime.

The first edition of this book was published in 1970.

I learned how to calculate the hacoversine in trigonometry.

There are times when we perform calculations with the haversine in trigonometry.

He instigated a revolt against the government.