詞根pat來自拉丁語的詞根pat 意為to walk。同義詞根有來自拉丁語的ambul[ambl]。 1.expatiate [向外走出去ex(=out) + pat(=walk)] vi.詳述，細說 She expatiated on the topic of flower arranging.她就插花這一主題進行了詳細的闡述。 2.peripatetic adj.流動的；巡回工作的 peri(=around) peripatetic religious teachers of India 印度的周游四方宗教教師