专注 concentrate one's attention on; be absorbed in; devote one's mind to 他的整个思想只专注在一个问题上 -- 如何反攻敌人。 his whole mind was concentrated on one thing only -- how to turn table on the enemy
Perhaps an operation takes an oddly long time , which suggests to the attentive tester that increasing the size of an " irrelevant " dataset might cause the program to slow to a crawl 也许一个操作任务奇怪地花费了很长时间,可能使专注的程序员感到增加“不相关”的数据集合的大小可能使程序慢如蜗牛。