岗的英文：
mound
policeman's beat

参考例句：
  • The captain posted guards at the door.
    上尉在门口布了岗。
  • A low mound of earth;a hummock.
    小土丘;圆岗
  • A low mound or ridge of earth; a knoll
    小丘低土丘或圆岗;小丘
  • I start from my home in the quiet little suburb of Forest Hills, Long Island.
    我从我在长岛森林岗静静的小郊区的家出发。
  • The donkey was so overloaded, it could hardly climb the hill.
    那驴负载过重，几乎爬不过岗。
  • Eskers are very long ridges apparently formed when sub-glacial streams or rivers deposited sedimentary materials
    蛇形丘显然是冰下河溪的沉积物堆积而成的很长的垄岗。
  • We usually don't care whether a rock is classified as a granodiorte or diorite or tonalite
    我们通常并不注意某种岩石是属于花岗闪光岩、闪长岩还是英云闪长岩。

mound是什么意思：
n. 土堆，土墩；（一）堆
v. 堆起，积成堆
  • Blown soil mounded on the window sill.
    吹散的尘土堆积在窗台上。
  • There's a mound of books on my desk.
    我的书桌上有一堆书。
  • the pitcher's mound [plate, rubber]
    投手板

policeman是什么意思：
n. （男）警察
  • The policeman figured the features of the criminal.
    这个警察描述了这个罪犯的特征。
  • a policeman's beat
    警察的巡逻路线
  • The robber was shot dead by the policeman.
    那强盗被警察击毙了。

beat是什么意思：
n. 打；心脏跳动；滴答声；照射
v. 打；打败；使沮丧；诈骗；艰难的前进；滴滴答答
adj. 疲乏的；大吃一惊的；破旧不堪的
  • subcarrier beat
    副载波差拍
  • intercarrier beat
    载波差拍干扰
  • a policeman's beat
    警察的巡逻路线

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