国际音标

（水）退去；（土地）下沉；（情绪）平息

词根法分析

字面意思是‘坐在下面’，引申为‘下沉’或‘平息’

• sub-前缀，表示‘在...下面’或‘次于’，来自拉丁语
• side词根，表示‘坐’或‘安置’，来自拉丁语‘sidere’

例子

• subsidence下沉；沉降，来自‘subside’的名词形式
• reside居住，来自拉丁语‘residere’，‘re-’（回）+‘sidere’（坐）

练习

• submarine潜水艇，‘sub-’（下面）+‘marine’（海的）
• substandard低于标准的，‘sub-’（低于）+‘standard’（标准）

造句

• The flood waters began to subside after days of heavy rain.
• Her anger subsided when she heard his explanation.
• The ground subsided where the underground river had flowed.