短語(yǔ)詞組短語(yǔ)expatiate upon 詳細(xì)闡釋expatiate e 祥述rational expatiate 理性闡釋deep expatiate 深入闡述expatiate on a subject 詳述一個(gè)題目expatiate on a subject detail 詳述一個(gè)題目expatiate on 闡述;詳述 返回 expatiate