The digital song catalog for karaoke has been updated.

He defeated the enemy using a two-sword style.

At the end of the meeting, we concluded with a ceremonial hand clapping of three claps.

This rock is gabbro.

He cleaned the bowl of the pipe thoroughly.

The students lined up in response to the teacher's instructions.

He is majoring in petrology at university.

This cigarette contains carcinogens.

I used binoculars to observe birds in the mountains.

It is said that this substance has a high carcinogenicity.