wadi

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++wa·di /ˈwɒdi $ ˈwɑː-/ noun [countable]  a river bed in a desert which is usually dry but becomes full of water when there is a lot of rain 〔沙漠中的〕干河床

wa·di nounChineseSyllable  

wadi
wa‧di /ˈwɒdi $ ˈwɑː-/ noun [countable]
a river bed in a desert which is usually dry but becomes full of water when there is a lot of rain

wadiBrE /ˈwɒdi/ 🔊NAmE /ˈwɑːdi/ 🔊 noun(in the Middle East and N Africa) a valley or channel that is dry except when it rains （中东和北非仅在雨后才有水的）干谷，干河谷