composition: n. 作曲，作文

be composed of sth. 由...组成

　 =consist of sth. 由...组成 = be made up of

　 make up sth. 组成...

The USA consists of 50 states.

The USA is composed of 50 states. = The USA is made of 50 states.

50 states make up the USA.

3. conductor n.指挥

conduct n.行为；举止；举动；品行

His conduct disagrees with his words. 他言行不一。

vt., vi.

1)行为；举止；为人；表现=behave

Your children conduct themselves well.

你的孩子们表现甚佳。

2)处理； 经营；引导；实施;进行

My aunt conducts her business very successfully.

我的婶婶把企业经营得很成功。

do/ make/ carry out / conduct an experiment 做实验

do/make/conduct a survey 做，进行一项调查

conduct a dictionary 查字典

3)引导；导游

The headmaster conducted us round the school.

校长带引我们在学校里参观了一圈。

The guide conducted us on a tour of the oldest museum in the country.

导游带我们游览了这个国家最老的博物馆。