trench
名词 trench:
a ditch dug as a fortification having a parapet of the excavated earth
a long steep-sided depression in the ocean floor
同义词:deep, oceanic abyss
any long ditch cut in the ground
动词 trench:
impinge or infringe upon
同义词:impinge, encroach, entrench
fortify by surrounding with trenches
cut or carve deeply into
set, plant, or bury in a trench
cut a trench in, as for drainage
同义词:ditch
dig a trench or trenches