closers闭门器；
closer：adv.接近；靠近；紧挨着；不远地；
adj.(在空间、时间上)接近;几乎(处于某种状态)
相关介绍
Are they any closer to understanding how the brain works?
他们对大脑功能的了解有进展吗？
The figures in the distance seemed to be drawing closer.
远处的人影好像越来越近。
After the meeting the two sides in the dispute were no closer together.
会面之后，争论的双方立场差距依然如故。
