She plumped her pillows and climbed into bed.（她拍了拍枕头，爬上床睡了。）
You can describe someone or something as plump to indicate that they are somewhat fat or rounded.
She was a plump little girl.
A chubby person is somewhat fat.
She was always chubby as a child.
If someone describes a woman as curvy, they think she is attractive because of the curves of her body.
美语里的baby fat，英式英语也叫作puppy fat，都是指“婴儿肥”。“婴儿肥”通常会随着岁数的增长而消失。
She's a little overweight but it's just baby fat.
If you describe a part of someone's body as full, you mean that it is rounded and quite large.
She has a full face.
They specialize in clothes for women with a fuller figure.