Though poor and fragile, Ethiopia carries a lot of weight in the region.
然而，贫困，脆弱的埃塞俄比亚却在这片土地上占据着举足轻重的地位。
A weight function is introduced to expand this method into asymmetrical region.
引进权函数使本方法简单地过渡到非对称问题。
A weight function is introduced to expand this method into asymmetrical region.
引进权函数使本方法简单地过渡到非对称问题。
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