胖嘟嘟的英文：
chubby
plump

chubby是什么意思：
adj. 圆胖的

To become well-rounded, chubby, or full in form.
变丰满，变圆胖在形体上成为圆鼓鼓、胖乎乎或饱满的

Do you think I'm too chubby?
你觉得我是不是太胖了？

He has a chubby baby face, which makes him appear younger than his age.
他长了一张圆胖的娃娃脸，这让他看起来比实际年龄小。

There Baumbich found a photograph of a chubby toddler opening a treasure chest -- out of which flew butterflies.
在那儿，她看到了一张照片，照片上一个胖乎乎的小孩正打开一个珠宝盒，从盒子中飞出了蝴蝶。

plump是什么意思：
v.（使）鼓起；变丰满，使丰满；（使）突然沉重地落下
n. 扑通声
adj. 丰满的；充裕的；鼓起的
adv. 沉重地；突然地

She plumped the cushions.
她将垫子拍拍松。

He ran plump into me.
他突然撞到我身上。

She has a plump figure.
她有着丰满的身材。

Say it out plump!
老老实实地说出来吧！

The baby is plump and very cute.
那个婴儿白白胖胖的，十分可爱。