perimeter
英 [p?'r?m?t?]
美[p?'r?m?t?]
- n. 周長(zhǎng)；周界；[眼科] 視野計(jì)
TEM8IELTSGRETOEFL低頻詞擴(kuò)展詞匯CET6
詞態(tài)變化
復(fù)數(shù):?perimeters;
助記提示
1. peri- "周?chē)⒏浇? => perimeter, perigee.
中文詞源
perimeter 外緣，周長(zhǎng)
peri-,在周?chē)?meter,測(cè)量，詞源同meter,diameter.引申詞義外緣，周長(zhǎng)。
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(yǔ)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(lái)自柯林斯例句
- 2. The plane veered off the runway and careered through the perimeter fence.
- 飛機(jī)突然偏離跑道，高速?zèng)_過(guò)了周?chē)淖o(hù)欄。
來(lái)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(shù)。
來(lái)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(lái)自《權(quán)威詞典》
- 5. The river marks the eastern perimeter of our land.
- 這條河標(biāo)示我們的土地東面的邊界.
來(lái)自《簡(jiǎn)明英漢詞典》