| 单词 | perimeter |
| 释义 | perimeter nounadjective | verb + perimeter | perimeter + noun | preposition adjective➤inner, outer内周长；外周长➤northern, southern, etc.北部、南部等边缘➤entire整个周边➤defensive, security环形防线；安全界线➤airport, base机场／基地周边verb + perimeter➤establish, form, mark建立／形成／标明周边◆the river marks the eastern perimeter of our land.这条河构成了我们领土的东面边界。➤defend, guard, secure保卫／护卫／防卫周边➤patrol, walk沿周边巡逻／行走➤breach突破周边防线◆the gunman did not breach the security perimeter around the white house.持枪歹徒没有突破白宫周围的安全防线。perimeter + noun➤fence, fencing, wall围篱；围墙➤security周边安全➤road环绕四周的道路➤defender, player, shooter (all in basketball皆用于篮球) 外线防守队员／球员／投篮手preposition➤along the perimeter沿着边缘◆i lugged my suitcase along the perimeter of the square.我费力地拖着手提箱沿着广场的边缘走。➤around the perimeter, round the perimeter (especially bre) 围绕周边◆we walked around the perimeter of the prison.我们绕着监狱周围走了一圈。➤inside the perimeter, outside the perimeter在界限里面／外面◆they demonstrated just outside the perimeter of the embassy.他们就在大使馆的外面示威。➤on the perimeter在边缘上◆many of the offices are located on the perimeter of the site.许多办公室位于那个地方的周边。perimeter /pərɪmɪtə(r)/ [countable] (rather formal) the furthest edge of an enclosed area of land（围起来的土地的）外缘，边缘◆guards patrol the perimeter of the estate.保安人员在庄园四周巡逻。◆there is a 15-foot perimeter fence.四周围着 15 英尺的栅栏。perimeter/pəˈrɪmɪtə(r) ||; pəˈrɪmətɚ/noun [c] the outside edge or limit of an area of land 周边；周围；边缘地带: ◇the perimeter fence of the army camp 这座军营四周的围栏 perimetersee ⇨ edge 2 pe·rim·e·ter /pə`rɪmətə; pəˈrɪmɪtə/n [c]the outside edges of a shape or area of land 周长; 周围:◇the perimeter of the airfield 机场周围◇the perimeter of a triangle (=the total length of its sides) 三角形的周长 |
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