trench

• 名词，指为军事防御而挖的长而窄的沟渠，也指海底自然形成的长条形洼地（海沟）。

A noun referring to a long, narrow ditch, either dug for military fortification or naturally occurring as a depression in the ocean floor.

1. Military fortificationB2formal

   A long, narrow ditch dug in the ground, typically with a raised bank of earth, used as a shelter or defensive position in warfare.

   战壕

   • The soldiers dug a trench to protect themselves from enemy fire.
   • Life in the trenches during the war was extremely harsh.
   • The general ordered the construction of a new trench line.

   同义词ditchdugoutearthworkentrenchmentfossefoxhole

2. Oceanic depressionC1formalscientific

   A long, steep-sided, narrow depression on the ocean floor, often the deepest part of an ocean basin.

   海沟

   • The Mariana Trench is the deepest known part of the world's oceans.
   • Scientists are exploring the unique life forms found in deep-sea trenches.
   • The trench was formed by the subduction of tectonic plates.

   同义词abyssdeeptrough

3. General ditchB1formal

   Any long, narrow ditch cut into the ground, often used for drainage, laying pipes, or other practical purposes.

   沟渠

   • Workers dug a trench to lay the water pipes.
   • A trench was cut along the side of the road for drainage.
   • They filled the trench with gravel after installing the cables.

   同义词channelcutditchdrainexcavationfurrowguttertrough

   反义词bankelevationembankmentmoundridgerise

• 动词，指挖掘狭长的沟渠，或指深深地切入、嵌入某物，常用于军事、建筑或地质语境。

A verb meaning to dig a long, narrow ditch or to cut into something deeply, often used in military, construction, or geological contexts.

1. Encroach or InfringeC1formal

   To intrude upon or violate someone's rights, territory, or boundaries.

   侵犯

   • The new law should not trench upon the fundamental rights of citizens.
   • His actions trenched upon the privacy of his neighbors.
   • The company's expansion trenched on protected land.

   同义词encroachimpingeinfringeintrudeinvadetrespass

   反义词honorobeyobserverespect

2. Fortify with TrenchesB2formal

   To surround or protect a position by digging ditches, typically for military defense.

   用战壕防御

   • The soldiers trenched the perimeter to defend against the attack.
   • They trenched the camp to secure it from enemy fire.
   • The army trenched the hilltop before the battle.

   同义词dig inentrenchintrench

3. Cut or Carve DeeplyC1formal

   To cut or carve a deep groove or mark into a surface.

   深深刻入

   • The river trenched a deep channel through the valley.
   • Time had trenched deep lines into his face.
   • The sculptor trenched intricate patterns into the stone.

   同义词carvechannelcutexcavatefurrowgrooveincisescoop

4. Plant or Bury in a TrenchB2formal

   To set, plant, or bury something in a long, narrow ditch.

   埋入沟中

   • The gardener trenched the bulbs for the winter.
   • They trenched the pipes to lay the new water line.
   • The farmer trenched the seeds in the prepared soil.

5. Dig a Drainage TrenchB2formal

   To cut a long, narrow ditch in the ground, typically for drainage purposes.

   挖排水沟

   • The workers trenched the field to improve water runoff.
   • He trenched around the foundation to prevent flooding.
   • The crew trenched the area to install a drainage system.

   同义词channelcutdigditchexcavatefurrow

   反义词burycoverfillflattenlevelsmooth

6. Dig TrenchesB2formal

   To dig a long, narrow ditch or series of ditches, often for military or construction purposes.

   挖战壕

   • The soldiers trenched all night to prepare the defensive line.
   • They trenched the site to lay the foundation for the building.
   • The team trenched the area to bury the cables.

   同义词digditchentrenchexcavatefurrowhollow