Intermolecular forces are an important factor in determining the properties of a substance.

Katoriki is a rare name, isn't it?

He proposed a new theory about quantum mechanics.

Thanks to his serendipity, we were able to find a new business opportunity.

I use plain flour to make bread.

He is always facing difficulties, just like the proverb 'clouds over the moon, wind in the flowers'.

We should always remember the power of Kannon in difficult times.

He was delighted with the unexpected profit, saying 'When the wind blows, the cooper profits.'

He faced difficulties with the spirit of 'one eye, two feet, three gallbladders, four strengths'.