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いっぱい， 一杯， １杯， 一盃
1. one cup (of), one glass (of), one bowl (of), cupful, glassful, bowlful, spoonful
2. one drink (of alcohol)
3. full, filled (with), brimming (with), crowded, packed
4. fully, to capacity, to the maximum, as much as possible
5. a lot, much, many
6. ...
一杯，一碗，满杯，满碗，满勺；满的, 充满的, 布满的, 挤满的；充分地, 尽最大能力, 最大限度, 尽可能地；很多，许多；全部的……，整个……；一只（鱿鱼、章鱼、螃蟹等）；一艘（船）
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なければならない， なければなりません， なければいけない
1. have to do, must, should, ought to
必须，应该
