虚弱

People with tennis elbow have definite arm weakness, so a formal exercise program is most important.

网球肘患者有确定的手臂虚弱现象，因此有一个正式的运动计画是最重要的。

A woman rushed to see her doctor, looking very much worried and all strung out.

一个妇女匆忙地跑到医生哪里，看上去很焦急，身体很虚弱。

A cough, often producing a greenish or rust-colored mucus, is one of the characteristic symptoms of the illness, along with fever, chills, chest pain, weakness, fatigue, and nausea.

肺炎的特征性症状为咳嗽会产生绿色或锈色的粘液，并伴随有发热，寒战，胸痛，虚弱，疲劳，恶心。

He hasbeen lacking in energy for some time.

他感到虚弱有段时间了。

Unfortunately for the cow, this means that they give birth to a far larger calf than their pelvic girdle allows for. They frequently suffer greatly giving birth to these huge offspring, or require Caesarean operations, which weaken them further and shorten their lives.

因为他们得把那些体积远大于他们骨盆所能承受的小牛生出来，为了生出体型巨大的小牛，母牛往往遭受极大的痛苦；有时甚至必须剖腹生产，这个过程使得乳牛更加虚弱，也因此缩短了他们的寿命。

Methaemoglobin loses its ability to bind oxygen and causes hypoxia in the affected individuals. The condition is characterized by headache, weakness and breathlessness, and a bluish discolouration of the skin and mucous membranes called cyanosis.

这是因为亚硝酸盐使体内红血球素中的铁由亚铁氧化成正铁，正铁血红蛋白失去携氧能力，造成血氧过少，令人感到头痛，虚弱，呼吸困难，皮肤和黏膜会变成紫蓝色，医学上称为发绀。

A person suffering from heat exhaustion feels weak and extremely tired.

一个中暑的人会感觉很虚弱和特别的累。

A person suffering from heat exhaustion feels weak and extremely tired.

患了中暑衰竭的人会感觉虚弱和非常累。

Heat exhaustion results from inadequate water and salt intake and can lead to dehydration and collapse .

原因是水和盐摄取得不够，可导致脱水或虚弱。

He took to biting the rosebuds now, and tearing them away from his teeth with a hand that trembled like an infirm old man's.

他现在开始咬着玫瑰花苞，又用手把花从牙齿中扯了出来，他的手颤抖着象一个虚弱的老年人的手一样。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷