He is in his unlucky year, so he needs to be particularly careful.

My signature is required on this contract.

He is traveling around the world in search of the elixir of life.

He needs long-term drug therapy.

His words reminded me of the proverb 'good advice may be uncomfortable to hear.'

The external urethral sphincter is an important muscle for controlling the excretion of urine.

This blade is very sharp.

Is the kanji 署 used in a name?

This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.