1.
Frail in constitution or health.
体弱的，羸弱的体质或健康娇弱的
2.
our invalid mother
我们体弱多病的母亲
3.
She helps take care of her ailing aunt.
她帮助照料体弱的姑妈。
4.
"No, dad. You're too weak. You're ill."
“不，爸爸，你身体弱，有病!
5.
Frailty of bodily constitution or health.
虚弱，纤弱体质或健康上的虚弱
6.
A person with a slender, thin, or frail body.
细长型者，瘦弱型人身体细长、瘦弱或虚弱的人
7.
Her health is very frail.
她的身体十分虚弱。
8.
He's still in poor health after his illness.
他病后身体仍很虚弱。
9.
I feel absolutely rotten .
我觉得身体非常虚弱。
10.
having little physical or spiritual strength.
体力或精神上虚弱的。
11.
a robust/weak constitution
强壮的[虚弱的]体质
12.
He is very slightly built.
他的体格非常瘦弱。
13.
a sickly Body makes a sickly mind.
身体虚弱，精神不振。
14.
too weak to walk far
身体很虚弱不能走远道
15.
Hong Kong Sports Association for the Mentally Handicapped
香港弱智人士体育协会
16.
constitutional weakness, robustness, etc
体质的虚弱、 强健等.
17.
He is in a weakened condition.
他的身体状况虚弱。
18.
The sick man's strength is on the wane.
病人的体力越来越弱。