affect和effect有什么区别？

What is the difference between affect and effect?

Answer: Affect is a verb that means "to have an influence on" or "to bring about a change in": Does second hand smoke affect the health of all of us? Effect can also function as a verb meaning "to execute": Only the president can effect such a change. However, effect is most often used as a noun meaning, "result": The drug did not affect the disease, and it had several adverse side effects. Rule of thumb: if you need a verb, nine times out of ten you will used affect; if you need a noun, you will always use effect.

问题102：affect和effect有什么区别？

回答：affect是一个动词，意思是“对……有影响”或“给……带来变化”。
例如：Does second hand smoke affect the health of all of us?

effect有时也可以作动词用，意为“执行”。
例如：Only the president can effect such a change.

但是，effect在大多数情况下都被用作名词，意为“结果”。
例如：The drug did not affect the disease, and it had several adverse side effects.

一个简便的原则就是如果你需要一个动词的话，十之八九选用affect，如果需要一个名词，则通常使用effect.