荷兰为什么有两个名字holland 和dutch?

英文中有关荷兰的三个词the Netherlands, Holland, Dutch 有 何区别？ The Netherlands指荷兰，就象China指中国一样。 Holland也指荷兰，这是因为以前以北荷兰省和南荷兰省为主体的两个省构成了荷兰，这两个省在全世界以从事贸易闻名，久而久之，人们便以Holland代指荷兰，但现在这两个省只是荷兰西部国土的一部分。 Dutch是指荷兰人，就象Chinese指中国人一样。Dutch也指荷兰语。
参考资料：http://www.ahwanhua.com/gj/show.asp?id=105

荷兰英文名称是Holland，另外又称Netherland，意为“低地之国”，因为荷兰大部分国土都在海平线之下，很多土地甚至是填海造田形成，在中古时代这里甚至是一片汪洋

荷兰人叫做Dutch，
: 是因为他们和德国人都自称是日耳曼人，
: 在德文称为Deutsch，
: 在荷兰文和英文称为Dutch。
: 荷兰官方的名称是Nederland，这是荷兰文。
: 英文的话，Holland和Netherlands都有人用。
:

The name Holland ultimately stems (possibly) from holt land ("wooded land"). A popular, but incorrect, fake etymology holds that it is derived from hol land ("hollow land"), inspired by the low-lying geography of both the Dutch and the English region

Various terms have been used in English to refer to the Netherlands and its inhabitants.

'(The) Netherlands' is the official name of the European part of the 'Kingdom of the Netherlands'. The term 'Holland' is commonly used as a synonym for the Netherlands, but the word Holland derives from a district in the west of the country that currently makes up two of the twelve provinces, namely North Holland and South Holland. The country's people and language are called 'Dutch'.