He is very good at understanding spoken Japanese.

I listen to Japanese podcasts every day to improve my listening comprehension.

What does this proverb interpretation mean?

It is difficult to find the optimal solution to this problem.

Could you please explain the meaning of this ancient document?

There is an alternative solution to this problem.

I will attend my friend's birthday party on the fourteenth.

I am planning to have my birthday party on the twenty-fourth.

When he lifted the heavy luggage, he said 'yokkoisho'.

Depending on the situation, he might not come.