doing business的用法和样例：
例句
- Twain's success as an author, public speaker, husband and father, was not reflected in his choice of business investments.
吐温是个出色的作家和演说家，也是个好丈夫和好父亲，但是他在经营商业上却一事无成。 - Even if Governmental conduct of business could give us more efficiency instead of less efficiency, the fundamental objection to it would remain unaltered and unabated.
即便政府经营商业能够带给我们更高，而不是更低的效率，从根本上反对它的力量仍然不会改变，不会减弱。
