perimeter
英[p?'r?m?t?]
美[p?'r?m?t?]
- n. 周長；周界；[眼科] 視野計
詞態(tài)變化
復(fù)數(shù):?perimeters;
助記提示
1. peri- "周圍、附近" => perimeter, perigee.
中文詞源
perimeter 外緣，周長
peri-,在周圍，-meter,測量，詞源同meter,diameter.引申詞義外緣，周長。
英文詞源
- perimeter (n.)
- early 15c., "line around a figure or surface," from Latin perimetros, from Greek perimetron "circumference," from peri- "around" (see peri-) + metron "measure" (see meter (n.2)). Military sense of "boundary of a defended position" is attested from 1943.
雙語例句
- 1. By night, the perimeter wire was illumined by lights.
- 到了夜里，周遭的鐵絲網(wǎng)都被燈光照亮。
來自柯林斯例句
- 2. The plane veered off the runway and careered through the perimeter fence.
- 飛機突然偏離跑道，高速沖過了周圍的護欄。
來自柯林斯例句
- 3. Some 300 trees have been ranged along the perimeter hedge.
- 沿著綠籬栽種著大約300棵樹。
來自柯林斯例句
- 4. Guards patrol the perimeter of the estate.
- 保安人員在莊園四周巡邏。
來自《權(quán)威詞典》
- 5. The river marks the eastern perimeter of our land.
- 這條河標示我們的土地東面的邊界.
來自《簡明英漢詞典》