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今日， きょう， こんにち， こんち， こんじつ
1. today, this day
2. these days, recently, nowadays
今天
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ほど， 程
1. extent, degree, measure
2. limit, bounds
3. (span of) time
4. (a) distance
5. the state of, the status of, the condition of
6. about, around, approximately, or so
7. as much as ..., to the extent of ..., like ...
8. the more ... the more ...
程度；极限，边界；时间跨度；距离；...状况，...情况；大约，或者；多如……，达到……的程度，如同……；越……就越……
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
