[書(shū)] ? (古代數(shù)目名,指一萬(wàn)萬(wàn)) one hundred million;tera(T) ? (層;級(jí)) step ? (不長(zhǎng)草木的山) bare hills ? (戰(zhàn)地,陣地) battlefield;battleground;position;front ? (草根) grass roots ◆垓下 Gaixia (a place name in ancient China,now in Anhui Province)