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洗濯， せんたく， せんだく
1. washing, laundry
2. relaxation, rejuvenation, melting away (of worries, fatigue, etc.)
洗涤、洗衣；放松、恢复活力、消除(忧虑、疲劳等)
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地下， ちか
1. underground, below the ground
2. world of the dead, the grave
3. underground (activities, movement, etc.), secret, illegal, in hiding
地下，位于地面之下；死亡的世界，坟墓；地下活动(包括行为、行动等)、秘密的、非法的、隐匿的
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
