Question

learn by heart=？ 解释句子（用英语解释它）

还有翻译句子能改成被动吗？the waste water pollute river 可以改成the river was polluted by waste water吗？

Answer 1

用心学习 也有用心记住的意思

可以的
例如：After listening,his words was all learned by heart.

还有最后一个也是可以的

有什么不明白你还可以问我

Answer 2

learn by heart=try to remember something until you can recite .

the waste water pollute river

the river was polluted by waste water

这不是一回事儿嘛~！

Answer 3

learn by heart = learn at pains

at pains adv.(=at the pains)尽力, 用心

the waste water pollute river 废水污染了河水
可以改成
the river was polluted by waste water 河水被废水污染了

Answer 4

learn by heart 记在心里

可以。但是 by waste water 要改成 by the waste water.

Answer 5

use your heart to learn something

by 后加the

Answer 6

learn by heart=remember...well初中教材有这个短语.意思是熟记

the waste water pollute river

这句话主要是改"pollute"的.
可以改成: The waste water makes river dirty