You can create rules for what each element is allowed to contain and make these rules strict, lax, or something in between.

您还可以创建决定添加何种元素的规则。 这些规则可以是严格的，也可以是松散的，这完全由您决定。

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The cybernetic difference between an organism such as a pollywog and an ecosystem such as a fresh-water bog is that an organism is tightly bound, and strict; an ecosystem is loosely bound, and lax.

从控制论的角度看，象蝌蚪这样的有机体和淡水沼泽这样的生态系统之间控制方式的不同在于，单个有机体受到严格紧密的束缚，而生态系统则宽松自由，不受束缚。

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Each state sets its own accrediting criteria; some are strict, some are not. Perhaps the strictest is Oregon, while Montana, Hawaii and California, for example, are rather lax.

每个州有自己的办学标准，有的州严，有的州松，最严的恐怕要算俄勒冈州了，而蒙大拿、夏威夷和加州就相当松。

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Just like with movies, some parents will be more lax and others more strict.

FORBES: 'Halo 4' Won't Make Your Kids Violent: Why Parents Should Play Video Games With Their Kids

In rich countries they are often inconsistent: too strict about some sorts of waste and worryingly lax about others.

ECONOMIST: Talking rubbish

It's a sad day for Spanish content pirates, as formerly lax laws allowing P2P file sharing for personal use have just been overturned in favor of strict new rules that make file swappers financially liable for any unauthorized downloading they partake in.

ENGADGET: Spain cracks down on file sharing