江山易改，本性难移：
1、Rivers and mountains are easy to change, but nature is hard to change.
2、the leopard cannot change its spots.
3、A crow is never the whiter for washing herself often.
重点词汇解析：
change：改变;变化;使不同;(使)变换，改换，变成
发音：英 [tʃeɪndʒ] 美 [tʃeɪndʒ]
第三人称单数： changes 现在分词： changing 过去式： changed 过去分词： changed
单词用法：
change sth to：（使）变换，改换，变成
例：Caterpillars change into butterflies.
译：毛虫变成蝴蝶。
change sth (to sth)替代；替换；更换
例：I want to change my doctor.
译：我想另找一位医生看病。
into sth change ：换衣服；更（衣）
例：I went into the bedroom to change.
译：我走进卧室更衣。
spots：斑点;污迹;污渍;脏点;(皮肤上的)丘疹，疱疹，粉刺;脓疱
发音：英 [spɒts] 美 [spɑːts]
spot的第三人称单数和复数
单词用法：(皮肤上的)小肿块，斑点
例：Never squeeze blackheads, spots or pimples.
译：千万不要挤黑头、小肿块或粉刺。
表示处于困境
例：If you are in a tight spot, you are in a difficult situation.
译：有麻烦时，我会首先去找弗兰克。
never：从不;绝不;从未;未曾;(与not同义，语气较强)一点都不
发音：英 [ˈnevə(r)] 美 [ˈnevər]
单词用法：从不；绝不；从未；未曾
例：You never help me.
译：你从不帮我。
never与not同义，语气较强）一点都不，从未
例：I never knew (= didn't know until now) you had a twin sister.
译：我一点都不知道你还有个双胞胎姐姐。
ften：时常;常常;往往;大多
英 [ˈɒfn] 美 [ˈɔːfn]
比较级： more often 最高级： most often
单词用法：时常；常常
例：We often go there.
译：我们常去那里。
表示往往；大多
例：Old houses are often damp.
译：老房子大多都潮湿。
扩展资料：
often的语法用例：
often通常用于动词前，但若前面有less，more等词，或从句为否定形式时，可置于动词之后。
例：They often spent Christmas at Prescott Hill
译：他们经常在普雷斯科特山过圣诞节。
as often as not：通常；往往；一贯
例：As often as not, he's late for work.
译：他上班往往迟到。
once too often：侥幸，难再
例：You've tried that trick once too often.
译：你故技重施，可这次再逃不脱了。