Mound Builder

同根派生

By about A. D. 500 the Mound Builder culture was declining, perhaps because of attacks from other tribes or perhaps because of severe climatic changes that undermined agriculture.
大約是在公元500年，營塚文化開始衰落，這也許是由於其他部落的進攻，也許是由於重大的氣候變化對辳業(yè)造成了破壞。
Has the builder presented his bill yet?
營造商把帳單送來了嗎？
A mound of stones erected as a memorial or marker.
錐形石塚一堆石頭，用於表示紀(jì)唸或標(biāo)志
He lay in his bunk under a mound of blankets.
他躺在鋪上，身上蓋了一大堆毯子。
There is a mound of papers on my desk.
我的辦公桌上放了一大堆文件。