虚弱的英文：
weak
in poor health

参考例句：

An old or sick person is often feeble.
老人或病人往往很虚弱。

To deprive of strength or vigor;weaken.
减弱力气或力量;使虚弱

She looked wan and fragile.
她看上去既疲乏又虚弱。

To quiver,as from weakness; tremble.
颤抖战栗，如因虚弱;颤抖

The state of being weak or feeble;infirmity.
衰弱虚弱或无力的状态;体弱

This is only a reflection of their frailty.
这只是他们虚弱的反映。

The siege of pneumonia debilitated him completely.
肺炎的长期折磨，使他变得很虚弱。

Infirm,feeble,and often senile.
蹒跚的虚弱的，衰弱的，因老而糊涂的

She has been debilitated by dysentery.
她让痢疾搞得身体非常虚弱.

Lacking strength or energy; spiritless; weak.
无力的无力或无精力;无精打彩的;虚弱

weak是什么意思：
adj. 疲软的；虚弱的；软弱的；愚钝的；不牢固的；淡薄的

a weak radio signal; a weak link.
微弱的无线电信号；薄弱的连接。

He has weak eyes.
她的视力不佳。

The spirit is willing But the flesh is weak
力不从心。

poor是什么意思：
adj. 贫穷的；贫乏的；卑鄙的；可怜的；乏味的；缺少的；谦卑的
n. 穷人

They are poor but proud.
他们虽穷但很自重。

She is poor but quite respectable.
她虽穷，人品却很端正。

The poorness of the play disappointed the audience.
这出剧的拙劣令观众失望了。

health是什么意思：
n. 健康；卫生；保健；兴旺

health treasure.
保健珍品。

Health is happiness
健康就是幸福

From labor health; from health contentment springs
劳动使人健康，健康使人满足。