Alkynes play a very important role in organic chemistry.

In chemistry class, I learned about alkanes.

Alkenes play a very important role in organic chemistry.

He said, 'It's difficult to make a life,' explaining the phrase 'When a man steps over the threshold, he has seven enemies.'

The rainbow lorikeet is known for its vibrant colors.

Due to the company's tough financial situation, everyone's salary has been cut.

The Mitsukuri's lantern shark is a rare fish that lives in the deep sea.

My new hobby is playing the melodica.

His movements were slow, making everything feel delayed.

A new face in the hole board was installed in the park.