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なきゃいけない， 無きゃいけない
1. cannot do without something, indispensable, absolutely necessary
2. have to do
tbd
も
1. too, also, in addition, as well, (not) either (in a negative sentence)
2. both A and B, A as well as B, neither A nor B (in a negative sentence)
3. even, as much as, as many as, as far as, as long as, no less than, no fewer than
4. even if, even t...
tbd
