v. 把……调到零点或零位；校正（枪炮等）；集中精力于（zero 的过去式和过去分词）
1.When we had all zeroed in our guns on the enemy post, we opened fire.
我们把枪都瞄准了敌人的哨所，开火了。
2.He said he and his team have zeroed in on a section of a key protein in HIV's structure that does not mutate.
他和他的小组人员已经解开了HIV病毒结构中不能发生变异的的一种关键性蛋白质的存在部位。
3.News accounts throughout the world have zeroed in on the striking juxtaposition of the Downtown Eastside with the Winter Games.
世界各地的新闻都将目光聚集在与冬季奥运会市中心东区并列突出的该地。
4.Senate zeroed in on the Latin-American problems.
参议院把注意力集中在拉丁美洲问题上。
5.A series of discoveries by different groups of researchers have zeroed in on a highly conserved (nonmutated) region of the virus.
不同的研究团体的一系列发现都集中在这种病毒非常保守（不变异）的部分。
6.Now, a team from Poland believe they've zeroed in on this mystery: it's all about the starch.
现在，来自波兰的一个团队认为他们已经解开了这个谜团：关键就在于淀粉。