Sandwich compounds are being studied in a branch of chemistry.

He always buys cheap things, so in the end, it becomes 'penny wise and pound foolish'.

Kazumi is my best friend.

I have been to Suishiei.

Water Margin is one of the four great literatures of China.

In this chemistry experiment, we will learn about the dangers of cyanide compounds.

I buy water at the water store every day.

This compound contains a sulfhydryl group.

I will participate in an obstacle race this weekend.

In this situation, the proverb 'it is best to submit to circumstances' applies.