例外のないルールはない。
tbd
There are exceptions to every rule.
There is no rule without an exception.
Every rule has its exceptions.
There are no rules without exceptions.
There is no rule but has some exceptions.
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ない， 無い
1. nonexistent, not being (there)
2. unowned, not had, unpossessed
3. unique
4. not, impossible, won't happen
5. not
6. to not be, to have not
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