意思如下：
n. 重叠部分;覆盖物，涂盖层;[数]交叠，相交
vt. 重叠;与…部分相同
vi. 互搭，重叠;部分相同;[数]有与…共同的某物
[例句]
Environmental permitting is inefficient , rife with redundancy , agency overlap , and jurisdictional issues.
环保审批程序效率低下，人浮于事、机构重叠和管辖权混乱等问题严重。
he upper layer of felt should overlap the lower.
毛毡的上层应与下层重叠。
Social structures are not discrete objects; they overlap and interweave.
社会结构之间不是离散的，他们相互重叠交织。
The needs of patients invariably overlap.
病人的需求总有一些是一致的。
Use vinyl seam adhesive where vinyls overlap.
塑料布相叠处用塑料封口胶粘起来。
A fish's scales overlap each other.
鱼鳞一片片上下交叠。
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