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1·Plurals were hard, too.

名词的单复数也很难。

2·Write in the irregular plurals of these nouns.

写出以下不规则名词的复数形式。

3·A. Plurals: Write the plurals of these words in the correct columns below.

将加粗中名词的复数形式填入正确的栏目中。

4·I have not experimented with words having irregular plurals; words like datum and data might trip up Rails.

我没有使用不规则复数单词的经验；datum 和 data 等单词可能会令 Rails 出现问题。

5·Nouns that are not plural in native-speaker English are used as plurals by non-native speakers ( informations , knowledges, advices).

非英语母语人士将英语母语人士视为没有复数形式的名词以复数形式使用(“informations”，“knowledges”，“advices”)。

6·Overly literal search engines reduce usability in that they're unable to handle typos, plurals, hyphens, and other variants of the query terms.

过分依赖文字的搜索引擎降低了搜索可用性，他们不能应付那些打字稿(扫描稿)，错别字、以及复数的、加了连字符号的词，还有变异的单词。

7·Overly literal search engines reduce usability in that they 're unable to handle typos, plurals, hyphens, and other variants of the query terms.

过分依赖文字的搜索引擎降低了搜索可用性，他们不能应付那些打字稿(扫描稿)，错别字、以及复数的、加了连字符号的词，还有变异的单词。

8·Advanced search has the added benefit of matching different word forms, such as plurals, alternate verb endings, and various grammatical tenses, in the search results.

高级搜索的另一个好处就是可以在搜索结果中匹配不同单词形式，比如复数、不同的动词结尾和各种语法时态。

9·One of my observations is that Chinese speakers tend to have trouble with third-person pronouns (he and she aren't interchangeable in English) and collective plurals.

我注意到，讲中文的人经常把英文中的第三人称代词和集体名词单复数搞错（英文中的他和她不能互换）。

10·The superscript sign(') used to indicate the omission of a letter or letters from a word, the possessive case, and the plurals of numbers, letters, and abbreviations.

句号一种表示完全停顿的标点符号（。），放在句末或认为将会完成的阐述后及许多缩略式后。

复数

1·Advanced search has the added benefit of matching different word forms, such as plurals, alternate verb endings, and various grammatical tenses, in the search results.

高级搜索的另一个好处就是可以在搜索结果中匹配不同单词形式，比如复数、不同的动词结尾和各种语法时态。

2·I have not experimented with words having irregular plurals; words like datum and data might trip up Rails.

我没有使用不规则复数单词的经验；datum 和 data 等单词可能会令 Rails 出现问题。

(1)plural form复数形式

(1)plural society多元社会

(1)plural noun复数名词