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- Learn the essays by heart. 背诵短文。
- The children all had to learn the poem by heart. 孩子们都得把这首诗背出来。
- She set herself to learn the poem by heart. 她集中精力要把这首诗背下来。
- The children all have to learn the poem by heart. 孩子们都得把这首诗背出来。
- They are asked to learn the poem by heart. 他们须背过这首诗。
- We must learn the text by heart. 我们要把课文背熟。
- I know the essay by heart. 这篇论文我都记在心中。
- Learn the new words by hearts after class. 下课后把生词默记好。
- The boy soon learned the poem by heart. 这男孩不久便能熟背这首诗了。
- We all learned the poem by heart. 我们都把那首诗背了起来。
- We have learned the text by heart. 我们已经背熟了这篇课文。
- The students had to learn the poem by heart. 学生们必须背诵这首诗。
- Everyone must learn the text by heart. 每个人都要把课文背熟。
- Learn the poem / dialogue by heart. 背诵这首诗歌/这个对话。
- First of all, learn the formula by heart. 首先，把这个公式背熟。
- The essays by the foreign students are well-written except for a few mistakes in grammar. 外国学生的文章写得很好只是有几个语法错误。
- We have to learn the whole poem by heart. 我们得把整首诗背下来。
- He had managed to learn the contents of the letter by heart. 他已设法把这封信的内容背了下来。
- Being illiterate, she had to learn the stories by heart. 由于她不识字，这些故事她都得背下来。
- Being illiterate, he had to learn the stories by heart. 由于他不识字，这些故事他都得背下来。
