误He has gone to London on a business.
正He has gone to London on business.
析可说on business(因事),也可说on a little business(因一件小事),但不可说on a business。
她的丈夫是个实业家。误Her husband is a businessman.
正Her husband is a man of business.
析a businessman的意思是“商人”, man of business的意思是“实业家”。
你想干什么,是经商还是当律师?误Which do you want to do, go to business or become a lawyer?
正Which do you want to do, go into business or become a lawyer?
析go to business是“去上班”的意思, go into business才是“经商”的意思。
非公莫入。误No admittance except in business.
正No admittance except on business.
析in business的意思是“经商”, on business才是“因公,因事”的意思。