Good habits are mainly rely on the people's self constraint, or by the people to see the negative.

好的习惯主要是依靠于人的自我约束，或者说靠人对自我欲看的否定。

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If time is a constraint, and it usually is, you may want to consider self-study courses or find an experienced mentor.

如果时间受到约束，通常会出现这样的情况，您可能会考虑到自学课程或者找一个有经验的指导者。

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Critics see it as a reckless act of self-constraint.

批评者认为这是一个自我约束的鲁莽行为。

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Many of those choices are manufactured to better segment the consumer market, some can be offloaded to experts to make on our behalf and some can be limited by self-imposed constraint.

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The twenties, possibly alone among the middle decades of life, are passionately celebrated in fiction and memoirs, and the celebrations tend to share a style that is personal, specific, cliquish, pastiched, breathless, often bibulous, and flagrantly confessional the voice of early mastery without mature constraint, self-discovery at a moment when each revelation seems unique.

NEWYORKER: Semi-Charmed Life