(American football) putting the ball in play by passing it (between the legs) to a back; "the quarterback fumbled the snap" 同义词：snap,
the concentration of attention or energy on something; "the focus of activity shifted to molecular biology"; "he had no direction in his life" 同义词：focus, focusing, focussing, focal point, direction,
例句与用法
1.
He was a center of a political donnybrook . 他是政治论战的中心人物。
2.
The strikers paraded through the city center . 罢工者游行通过市中心。
3.
What is the instantaneous center of revolution ? 瞬时转动中心在哪里？
4.
His practice is in the center of the city . 他的事务所在市中心。
5.
The information center gives out news regularly . 信息中心定期公布消息。
6.
The town center certainly needs a face-lift . 市中心当然需要装饰一下了。
7.
Assessment centers do present some problems . 评鉴中心的确存在一些问题。
8.
The center of support should be made adjustable . 支承中心应做成可调的。
9.
Brain is the master control center of the body . 脑是身体的主要控制中心。
10.
The center housed a priceless treasure trove . 该中心存放着一件无价之宝。
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