1.
To summon one's strength or endurance.
集中力量或打起精神
2.
He gathered his strength for the battle
他集中力量准备战斗。
3.
(6) concentration of troops;
（六）集中兵力问题；
4.
To concentrate emotional energy on(an object or idea).
集中精力于将精力集中于（某物或观点）
5.
The ability or power to concentrate mentally.
注意力精力集中的能力或力量
6.
tending away from centralization, as of authority.
倾向于远离集中，例如远离权力集中。
7.
I can't concentrate on any work.
不能集中精力工作。
8.
He's tired and can't concentrate.
他累了，注意力不能集中。
9.
centre attention on
把注意力集中在...之上
10.
the trait of being observant and paying attention.
把注意力集中在某方面。
11.
Direct one's/someone's attention to
(使)注意,(使)注意力集中
12.
"Turn around, and pay attention."
"转身过来,将注意力集中。"
13.
Attention centred on the priest.
注意力集中在牧师身上。
14.
geometric elastic stress concentration factor
几何弹性应力集中系数
15.
They strongly recommended concentration of offer .
他们极力建议集中报盘。
16.
(3) All the main forces of the Red Army are concentrated.
（三）红军主力的全部集中；
17.
She concentrated on studying for her exams.
她集中精力准备考试。
18.
You need to be alert, with your senses sharp.
你应集中精力，全神贯注。