causal/kɔ:zl; `kɔzl/ adj1 of or forming a cause; relating to cause and effect 原因的; 构成原因的; 因果关系的.2 (grammar) expressing or indicating a cause 表示原因的 `Because' is a causal conjunction. because一词是表示原因的连接词.
牛津英汉双解词典