be on the mend
固定说法，表示病情或状况正在好转，是名词 mend 最常见的用法。
She was ill last week, but she is on the mend now.
她上周病了，不过现在正在康复。
与改进或修理有关的含义。；改进；好转
a repair or improvement; the act of mending
常用于 on the mend，表示正在康复
与改进或修理有关的含义。
Senses relating to improvement or repairing.
The mend on her jeans was almost invisible.
她牛仔裤上的修补处几乎看不出来。
用法提示：mend作为名词，表示衣物上修补过的地方。
He showed me the mend he had made on the sleeve.
他给我看了他在袖子上缝补的地方。
用法提示：mend作为名词，指修补的部位。
After several washes, the mend started to come loose.
洗了几次之后，修补处开始松脱。
用法提示：mend作为名词，强调修补的结果或区域。
固定说法，表示病情或状况正在好转，是名词 mend 最常见的用法。
She was ill last week, but she is on the mend now.
她上周病了，不过现在正在康复。
指某物上被修补过的地方，mend 在此为可数名词。
There is a neat mend in the sleeve of the jacket.
夹克的袖子上有一处整齐的修补。
grammar · medium
易错句子My grandfather is in the mend after his operation.
正确表达My grandfather is on the mend after his operation.
on the mend 是固定短语，其中 mend 是名词，介词固定用 on，意思是“在康复中、在好转”。汉语说“在康复中”，学习者容易受“在”的影响误用 in。
grammar · medium
易错句子My grandfather is on mend after his operation.
正确表达My grandfather is on the mend after his operation.
on the mend 中的 mend 是名词，该短语固定用定冠词 the，不能省略。汉语没有冠词系统，学习者常漏掉 the。
grammar · medium
易错句子His mend after the operation was very slow.
正确表达His recovery after the operation was very slow.
名词 mend 指“补丁、修补过的地方”，表示“康复”时只出现在固定短语 on the mend 中，不能单独作名词使用；要表达“康复的过程”应用 recovery。
在好转中
After a week of rest, he is finally on the mend.
经过一周的休息，他终于好转了。
快速修补
She made a quick mend to the torn sleeve.
她快速修补了撕破的袖子。
整洁的修补
The tailor did a neat mend on the jacket.
裁缝对夹克进行了整洁的修补。
明显的修补
There's a visible mend on the old quilt.
旧被子上有一处明显的修补。
修复关系，和解
After their argument, they decided to mend fences and become friends again.
争吵之后，他们决定修复关系，重新成为朋友。
在好转中，正在康复
She broke her leg last month, but now she's on the mend.
她上个月摔断了腿，但现在正在康复。
改过自新，改善行为
He used to be very lazy, but he has mended his ways and works hard now.
他以前很懒，但现在已经改过自新，努力工作。
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