But three forces have long constrained corporate conduct: regulation, litigation and competition.

但是长期以来，有三股力量约束着企业的行为：法规、诉讼和竞争。

But Angelou refused to be constrained.

然而安杰卢并没有被此限制。

With public spending, consumption and investment constrained, the government is relying on rising exports.

随着公共开支，消费和投资的紧缩，政府开始依靠出口增长。

What's negative is when those instincts that we all have are constrained.

消极的是当我们所有的本能都受到限制时。

It's possible those arcs are being constrained by small moonlets near the rings.

这些弧线可能为环附近的小卫星所限制。

For a while, Kelly's guardrails constrained Trump.

然而，凯利的护栏只对特朗普起到了片刻的约束作用。

We are not really constrained by function in hat making.

在制作帽子时，我们其实不会被功能需求限制。

Publicly, the U.S. does not seem to feel constrained by the ultimatum.

表面上看，这一最后通牒似乎并未令美国感到压迫。

For decades, the field was constrained by having hardly any data at all.

几十年来，由于几乎没有任何数据，该领域受到了限制。

We are constrained in our love choices by what we've learned of love as children.

我们对恋人的选择被小时候对爱情的认知所局限。