堑的英文怎么说

堑的英文：
moat around a city

• downfaulted graben
  断层陷落地堑
• The wall and trench before a camp are strong
  垒堑坚固
• A graben creates a favourable setting for uranium deposition
  地堑成为铀矿沉积的有利部位。
• They have railed the meadows off from the new railway cutting
  他们已用栏杆把草地和新铁道的路堑隔离开来。
• A usually elongated depression between geologic faults.
  地堑在两个地质断层之间的，通常很长的地壳下降部分
• The swastika flags flapping noisily in a high wind were all to visible in Prague in peacetime
  即使在升平岁月里，布拉格街头一些在劲风中飘扬的?圩制煲彩堑酱?杉?。

• the city of York
  约克特许市.
• beleaguer a city
  围攻一座城市
• The cleanliness of European cities puts our cities to shame.
  欧洲各城市的整洁使我们的城市相形见绌。