The text is too long for us to learn by heart.

这篇课文太长了，以致我们不能够记住。

He put a tick beside each word in the glossary that he have learn by heart.

他在词表中每一个已熟记的生词旁做个记号。

The teacher asked us to learn by heart as many excellent poems as possible.

老师要求我们尽量多背些美妙的诗歌。

If we may learn by heart new words by listening some word tapes, the results.

在背记生词时，如果能听词汇磁带，好处。

I like objective tests. You just learn by heart the facts, the dates and names.

观题型考试。你只需背出事实，时间和名字即可。