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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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終わり, 終り, 終, おわり
1. end, ending, close, conclusion
2. end of (one's) life, death
结束;死,生命尽头
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