kinds是什麼意思啊

These kinds of questions often appear in the exam.

這幾類問題在考試中經常出現。

Human beings are genetically programmed to learn certain kinds of language.

人類生來有學習某幾種語言的遺傳因素。

I like all kinds of music from opera to reggae.

我喜歡各種音樂，從歌劇到雷蓋都喜歡。

In crude terms, the causes of mental illness seem to be of three main kinds.

簡略地說，導致精神病的原因看起來主要有三種。