poor concentration信息详情
注意力差
注意力低下
concentration───n.浓度；集中；浓缩；专心；集合
impurity concentration───[电子]杂质浓度
high concentration───高浓度，高强度
concentration curl───[体]单臂哑铃弯举
poor───n.(Poor)（美）普尔（人名）；adj.贫穷的；可怜的；贫乏的；卑鄙的
concentration camps───n.集中营( concentration camp的名词复数 )
concentration ratio───集中度；浓度比率
concentration formula───浓度公式
concentration units───浓缩装置
A lack of zinc and iron can result in memory lapses, poor concentration, and of course other ailments throughout the body.───锌和铁的缺乏将导致健忘，注意力不集中，以及身体其它部分的疾病。
But the voice of the tree came again, a bit misplaced in relation to Bink and Sabrina-evidence of poor concentration.───但是树的声音又响了起来，发音位置出了点小小的偏差——他的注意力并没有完全集中在发音上。
If you skip breakfast, blood sugar levels drop, fatigue, poor concentration, irritability and lethargy results.───如果你忽视早餐，则会出现低血糖、疲劳、精力不集中，易怒和昏睡后果。
Fatigue, irritability, poor concentration, anxiety and depression--all can be signs of a B vitamin deficiency.───疲劳、易激怒、注意力涣散、焦虑、抑郁……所有这些常见的表现都可能是B族维生素缺乏的迹象。
early warning signs are uncontrolled shivering , slurred speech , bluish tinge to lips , lack of coordination , and poor concentration.───早期徵兆为不自主的身体颤抖、说话含糊、咀唇发紫、身体动作不协调及精神不能集中。
Drink water. Even mild dehydration results in fatigue, poor stamina, reduced short-term memory, and poor concentration.───喝水。即使轻微脱水，也会造成疲劳、体力下降、短期记忆力降低和难以集中精力。
Poor concentration is one common reason for a scattered mind-set.───集中注意力的能力不佳是形成分散意识形式的一个共因。
Hyperactive children often have poor concentration and require very little sleep.
Fatigue, irritability, poor concentration, anxiety and depression--all can be signs of a B vitamin deficiency.
He can walk and his speech is not affected, but he suffers from poor concentration and intermittent double vision.
Even mild dehydration results in fatigue, poor stamina, reduced short-term memory, and poor concentration.