英和和英

to finish one's business―get quit of one's business

at one's own charge―at one's own expense

oneself―for oneself―in person

I have some business to attend to

to use a thing for more than one purpose

to use something personally

Just oneself

in the flesh

being for someone's use

to be enough

to carry out one's tasks to completion

in Japanese, a personal possessive pronoun

I am engaged.

to do one's business―attend to business

something that a person should possess as his

to do one's business―transact business―（人に頼まれた用なら）―execute a commission―do one a service―（使い歩きの用なら）―run errands―undertake messages

something that concerns a person personally

to be useful―of use―serviceable―of service―good for something

I have finished my business

self-styled―soi-disant

of a person, his/her self-interest

to use something in a wasteful manner

one's own

without the aid or support of another person

to write in one's own hand

oneself

to be fit for use―fit for service

By ourselves

have with oneself

by yourself