He advocated for me.

He advocated his own opinion.

I am interested in learning Old French.

My grandmother recently needed nursing care.

I take care of my grandmother every day.

The trade name of my company is 'Sunshine Co., Ltd.'.

We use encryption to protect important data.

We need to encrypt important data.

Reading the Lunyu, you can gain deep insights into life.

In Japan, the era name is used to represent the reign of the emperor.