(-lapped, -lapping)with obj.
1- extend over so as to cover partly与…互搭; 与…重叠：
the canopy overlaps the house roof at one end
天蓬与屋顶的一端交叠
no obj. the curtains overlap at the centre when closed.窗帘拉上后在中间重叠。
1.1
- no obj. cover part of the same area of interest, responsibility, etc.（在关注的问题、承担的责任等方面）部分地重叠, 部分相同：
the union's commitments overlapped with those of NATO.
联盟承诺的义务与北大西洋公约组织承诺的义务部分重叠。
1.2
- no obj. partly coincide in time在时间上部分地重叠：
two new series overlapped.
两个新的系列节目播出时间部分重叠。
1
- a part or amount which overlaps重叠部分; 互搭量：
an overlap of about half an inch.
约半英寸的重叠部分。
1.1
- a common area of interest, responsibility, etc.共同的兴趣（或责任等）：
there are many overlaps between the approaches
这些方法有不少相同之处
mass noun there is some overlap in requirements.要求有相同之处。
1.2
- a period of time in which two events or activities happen together事情同时发生的一段时间。