这些都是“底部”的近义词：bottom, base, basic, basis, bottommost, depths, end, footing, foundation, fundament, fundamentally, ground, groundwork, heart, low, lower strata, lowermost, lowest, lowest level, lowest point, nadir, posterior, seat, underlying, underlying level, undermost, underneath, underpinning, underside.可能有一个适合你的要求。
无痕之音
