Definition of vlei in English:

1A shallow natural pool of water.

1. 1.1mass noun Low-lying, marshy ground, covered with water during the rainy season.
   雨季积水的低洼沼泽地
   Example sentencesExamples

   • A second flank of the fire was burning towards Kommetjie, but fire fighters were optimistic that it would burn out in a nearby vlei, which stood between the fire's present position and the village.
   • In 1854 the Town of Durban was a small settlement on a sandy plane surrounded by swamps (the eastern and western vlei's) and the bay.