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

1.
体重不足的, 过轻的
below a weight considered normal or healthy
:
•
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。
体重不足的, 过轻的
below a weight considered normal or healthy