My company is developing a new crawler.

The arrival of the Black Ships prompted the opening of Japan.

My closet is full of clothes.

I heard the beautiful song of a common blackbird in the park.

During my morning walk, I found a dewdrop gleaming like a jewel on the grass.

There is a cute black cat in my house.

There is beautiful black bamboo planted in my garden.

In this chemical reaction, cyclododecane is the main product.

I used cycloundecane in an organic chemistry experiment.

In the organic chemistry experiment, we succeeded in synthesizing cycloicosane.