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最下位, さいかい
1. last place, lowest position, lowest rank
2. least significant (bit), lowest order
末位,最低位置,最低等级;最低有效位,最低阶位
は
1. indicates sentence topic
2. indicates contrast with another option (stated or unstated)
3. adds emphasis
指示句子的主题;表示与另一选项(无论是否明确提及)形成对比;表示强调