underweight
US /ˌʌn.dɚˈweɪt/
UK /ˌʌn.dɚˈweɪt/

形容词
1.
体重不足的, 过轻的
below a weight considered normal or healthy
示例:
•
The doctor said the baby was slightly underweight.
医生说婴儿有点体重不足。
•
She was concerned about her dog being underweight.
她担心她的狗体重不足。
同义词:
在 Lingoland 学习这个单词