learn by heart / keep in mind 表示 “牢记” 有什么不同 急急急！keep in mind ,learn by hea...
know sth by heart\u548ckeep sth in mind\u7684\u533a\u522b\u4f60\u597d\uff01
learn sth by heart\u662f\u80cc\u8bf5\u7684\u610f\u601d
keep sth in mind\u662f\u8c28\u8bb0\u7684\u610f\u601d
\u6ca1\u89c1\u8fc7know sth by heart
\u767e\u5ea6\u6559\u80b2\u56e2\u961f\u3010\u6d77\u7eb3\u767e\u5ddd\u56e2\u3011\u4e3a\u60a8\u89e3\u7b54
\u5982\u6ee1\u610f\uff0c\u8bf7\u70b9\u51fb\u201c\u9009\u4e3a\u6ee1\u610f\u7b54\u6848\u201d\u6309\u94ae\uff0c\u8c22\u8c22\uff5e
keep in mind \u5f3a\u8c03\u522b\u5fd8\uff0c\u5c24\u5176\u5f88\u91cd\u8981\uff0c\u6216\u6709\u610f\u4e49\u7684\u89c4\u5219\u3001\u4fe1\u5ff5\u3001\u771f\u7406\u3001\u5efa\u8bae\u3002
\u5982\uff1a keep in mind "Always serve our people" \u3002
learn by heart \u6216 leart sth by heart \u6307\u5b66\u4e60\u65b9\u6cd5\u4e0a\u7528\u8bb0\u5fc6\u3001\u80cc\u8bf5\u6765\u8bb0\u4f4f\u77e5\u8bc6\u3002
\u5982 You must learn the word by heart . \u4f60\u5fc5\u987b\u7ed9\u6211\u8bb0\u4f4f\u8fd9\u4e2a\u5355\u8bcd\u3002
remember by heart \u7528\u5fc3\u8bb0\uff0c\u8bb0\u7262\uff0c\u4ee5\u9632\u4e0d\u7ecf\u610f\u5c31\u5fd8\u8bb0\u4e86\uff0c\u540ckeep in mind ,\u4f46\u6bd4\u5b83\u66f4\u5e7f\u6cdb\uff0c\u53ef\u4ee5\u662f\u4e00\u822c\u4e8b\u7269\uff0c\u4e5f\u53ef\u4ee5\u662f\u91cd\u8981\u4e8b\u7269\u3002
learn by heart 指的是“背诵”，是“memorize word for word” 逐字的背诵，有些偏机械的“一字不差”的背诵，是为了“背下来”的记住。比如背诵课文一类
比如：
Actors have to learn their lines by heart.
演员必须把台词背下来。
而keep in mind这个意义广泛很多。也可以说bear in mind 就是“记住”的意思，尤其是指，当你做某事的时候，一定要“注意”“想起”“记得”这件事情或人。
比如，
Please keep in mind that you promised to call her at two o'clcok
记得答应他的明天2点给他打电话。
You must keep in mind that he is younger than you．
你应该记住他比你年轻。
keep in mind
learn by heart 记住；默记；背诵（=retain, repeat, memorize）
强调“反复、重复”等动作或过程，动作对象多是具体事物。
keep in mind 记住，把…记在心里； 考虑到记住
（=retain, memorize, commit to memory, bear sth. in mind, keep sth. in mind）
侧重“分析、理解等方式的铭记、牢记，涉及对象多为抽象、情感、爱恨等。
扩展阅读：learning by heart ... learn the rhyme by heart ... monster black market ... quickly throw them back ... learn about doing sth ... listen to your teacher ... never gonna give you up ... listen to my heart ... succubus hunt for meal ...
