1、for example和such as都可理解为“例如”
2、但such as用来列举事物,插在被列举事物与前面的名词之间.例如：The farm grows various kinds of crops,such as wheat,corn,cotton and rice.这个农场种植各种各样的庄稼,例如麦子,玉米,棉花和稻米.
4、对前面的复数名词部分起列举作用,一般不全部列出.故不可以说：He knows four languages,such as Chinese,English,Fr髫潋啜缅ench and German.应将such as改成namely,后面加逗号.即：He knows four languages,namely,Chinese,English,French andGerman.
