野营的首要规则就是保持营地的清洁。

The first rule of camping is to keep a clean camp site.

youdao

认识其他人的首要规则是要展示自我。

The number one rule to getting to know people is show up.

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然而，洞穴理论的首要规则就是，当你身处洞穴之中时，就不要再挖了。

But the first rule of holes is that when you're in one, stop digging.

youdao

然而，洞穴理论的首要规则就是，当你身处洞穴之中时，就不要再挖了。

But the first rule of holes is that when you're in one, stop digging.

youdao