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1·Capitalize all proper nouns but not the articles (a, an) that precede them.

把所有的专有名词大写，它们之前的冠词(a, an)则不用。《柯林斯英汉双解大词典》

2·You will use one of the proper nouns twice.

其中一个专有名词会被用到两次。

3·All proper nouns begin with a capital letter.

所有的专有名词都以大写字母为首。

4·Proper nouns are spelled with a capital letter.

专有名词用大写字母。

5·Sometimes common nouns change into proper nouns.

有时普通名词会转变成专有名词。

6·We'll compare common nouns and proper nouns today.

我们今天来比较一下普通名词和专有名词。

7·A proper nouns always begins with a capital letter.

专有名词以大写字母开头。

8·Proper nouns deserve an investigation phase of their own.

专有名词值得作进行专门调查。

9·You will note that proper nouns begin with a capital letter.

你会注意到专有名词的第一个字母是大写的。

10·We use a capital letter for the first letter of proper nouns.

专有名词的第一个字母必须大写。