例如，如果建筑条例中包含绿色施工指导方针，大多数开发商会懒得去挑战它们。

If, for example, building codes included green construction guidelines, most developers would be too lazy to challenge them.

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重读一遍再问问和挑战它们。

Read over them and question them, challenge them.

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如果说转向视频流的举动使网飞公司更难偷偷接近HBO这类的媒体公司，但是它却更加有能力直接挑战它们。

If the move to streaming makes it harder for Netflix to sneak around media firms like HBO, though, it will be increasingly capable of challenging them head-on.

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Then, the next challenge was to figure out how to keep the dots on the streets because they were going all over the place.

接下来的挑战是,想办法让这些点固定在,街上，因为,它们总是不停地移动。

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