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それ， 其れ
1. that, it
2. then, that point (in time), that time
3. there
4. you
tbd
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やむを得ない， 止むを得ない， 已むを得ない， やむをえない
1. cannot be helped, unavoidable
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
