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売り上げ， 売上げ， 売上， 売り上， うりあげ
1. amount sold, sales, proceeds, takings, turnover
销售量、销售额、收益、收入、营业额
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落ちる， 墜ちる， 落る， おちる
1. to fall, to drop, to come down, to crash, to collapse, to cave in, to give way
2. to set (of the sun or moon), to sink, to dip, to go down
3. to decrease (of popularity, quality, speed, sales, etc.), to fall, to drop, to go down, to decline, to de...
坠落，掉落，落下，坠毁，坍塌，塌陷，倒塌；落(日、月)，下沉，下行；下降；进账；投射(光线、阴影、目光等)
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
が
1. indicates the subject of a sentence
2. indicates possession
3. but, however, (and) yet, though, although, while
4. and
5. used after an introductory remark or explanation
6. regardless of ..., whether ... (or not), no matter ...
7. indicates a des...
tbd
