waistline n.腰围
She has the perfect waistline.
她的腰围很完美。
When he went off his diet, his waistline started to grow.
当他停止节食后，他的腰围开始增加。

hourglass figure 玲珑有致的身材
An hourglass figure is proportional and harmonious and the waist is clearly defined.
玲珑有致的身材比例匀称，腰部轮廓分明。

postpartum adj.产后的
The Duchess of Cambridge shows a perfect postpartum body. She was out of hospital seven hours later with her face made up and high heels on.
剑桥公爵夫人产后展示了完美的身材。她生完孩子七小时就出院了，而且还画着妆穿着高跟鞋。
It is now so easy for a new mom to scroll through social media and read articles praising postpartum bodies with little trace of having carried a baby.
现在，新妈妈们很容易在社交媒体上浏览，读到赞扬那些完美产后身材的文章，里面的宝妈基本上都看不出来怀孕过。

a polished image 美化过的形象
The polished image of the royal appearing so quickly after her baby was born sends a wrong message to other moms.
凯特王妃在孩子出生后很快就以光鲜靓丽的形象露面, 这向其他妈妈们传递了一个错误的信息。

bounce back 恢复
The pressure for new moms to bounce back -- not just physically, but in all areas of life -- has never been higher.
要求新妈妈们恢复的压力——不仅是身体上的压力，而且是生活的各个方面的压力——从来没有这么大过。

stigma n.污名
The social stigma that weight gain is caused by a lack of discipline can be enraging, especially because hardworking mothers of newborns are anything but "lazy."
这种社会污名——认为体重增加单单是缺乏自律导致——让人感到愤怒，尤其因为刚生完孩子的艰难的母亲们一点也不“懒惰”。

set an unrealistic bar 设定了不现实的目标
Our society tends to set an unrealistic bar for new moms.
我们的社会倾向于为新妈妈们设定一个不切实际的标准。