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収入， しゅうにゅう
1. income, earnings, revenue, proceeds, takings, receipts
收入，收益、营业收入、营业额
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三倍， ３倍， さんばい
1. three times (as much), treble, triple, threefold
tbd
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
