眼前发黑

She was within three steps of the bottom; she already heard Morrel's voice, when suddenly a cloud passed over her eyes, her stiffened foot missed the step, her hands had no power to hold the baluster, and falling against the wall she lost her balance wholly and toppled to the floor.

她走下楼梯，当还只有三级楼梯未走完的时候，她已经听到莫雷尔的声音，但突然地，她眼前一阵发黑，她的脚摇摇晃晃地踩不到踏级，她的手无力握住栏杆，她撞到墙上。

She was within three steps of the bottom; she already heard Morrels voice, when suddenly a cloud passed over her eyes, her stiffened foot missed the step, her hands had no power to hold the baluster, and falling against the wall she lost her balance wholly and toppled to the floor.

她走下楼梯，当还只有三级楼梯未走完的时候，她已经听到莫雷尔的声音，但突然地，她眼前一阵发黑，她的脚摇摇晃晃地踩不到踏级，她的手无力握住栏杆，她撞到墙上。

He was very weak and was afflicted with a giddiness , which at times blinded him.

他虚弱极了，晕晕乎乎的眼前一阵发黑，随时都会摔倒。

As for 60 patients with MV, 45 suffered from motion sckness; 20 were sensitive to motion; 32 had photophobia and phonophobia; 45 had migraine ; 16 had abnormal ocular motion function; 3 had abnormal cerebral MRI and 40 had abnormal results in high stimulating rate ABR.

结果：64例PCIV患者，血压异常29例；血脂或血糖异常14例；血管超声异常37例；突然起身眼前发黑或头晕14例；高刺激ABR异常22例；4例头颅MRI异常。60例MV患者，运动病45例，运动敏感20例，畏光或畏声32例，偏头痛45例，眼动异常16例，MRI异常3例，高刺激ABR异常40例。

When because become,spirit is in excited condition, blood pressure can lift namely, the heartbeat is accelerated, cardiac muscle oxygen demand increases, cause skull at the same time inside vasomotor, occurrence photophobia, risk golden light at the moment or scintilla, at the moment nigrescent, brief blindness, these are the foreboding of migraine.

因 为当精神处于亢奋状态时，血压即会升高，心跳加快，心肌耗氧量增加，同时引起颅内血管收缩，出现畏光、眼前冒金光或火花、眼前发黑、短暂失明等，这些都是偏头痛的先兆。

Such a steep descent in an airplane would have blacked out a fledging.

飞机作这样的急速下降本来是会使缺乏飞行经验的人眼前发黑的。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。