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なければ, 無ければ
1. if (it) doesn't exist, if there is no ..., if (one) doesn't have ...
2. if not ..., unless ...
3. have to ..., must ...
tbd
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欠乏, 闕乏, けつぼう
1. deficiency, insufficiency, shortage, lack, want, dearth, scarcity
tbd
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なし, 無し
1. without
2. unacceptable, not alright, unsatisfactory
3. nonexistent
tbd