- 堑壕: trench; entrenchment; pit
- 工事: fortifications; defense work ...
- 堑壕: trench; entrenchment; pit 堑壕工事 entrenchment works; 堑壕构造 [地] aulacogen; 堑壕战 trench warfare
- 工事: [军事] fortifications; defense works; shelter◇工事构筑 construction of work
- 堑壕底: trench bottom
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