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倍， ばい
1. double, twice (as much)
2. times (as much), -fold
3. 1-nth, 1 to n, 1 in n
倍
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食べる， 喰べる， たべる
1. to eat
2. to live on (e.g. a salary), to live off, to subsist on
吃；以……为生
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
