英语语法分析

Plurals were hard, too.

名词的单复数也很难。

Write in the irregular plurals of these nouns.

写出以下不规则名词的复数形式。

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。