It seems that the attack was carefully planned.

看起来，这次袭击是精心策划的。

《柯林斯英汉双解大词典》

The spraying of pesticides can be carefully planned, but accidents, weather conditions that could not be foreseen, and pilot errors often cause much larger deposits of spray than they had anticipated.

杀虫剂的喷洒可以经过周密的计划，但意外事故、无法预见的天气状况以及飞行员的失误往往会导致比预期更多的喷洒量。

youdao

It was carefully planned and has a graceful mall.

它是精心设计的，还带有一个光鲜亮丽的购物中心。

youdao

It may seem disorderly, but the placement of each piece of bamboo has been carefully planned.

VOA: special.2010.08.13

He carefully planned his research to make the most of his time.

VOA: special.2010.07.11

Some carefully planned the way the stagecoach would travel.

VOA: special.2010.04.26

The timing has all been carefully planned to coincide with the 2014 World Cup.

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We want to hear about your greatest travel moments, whether serendipitous or carefully planned.

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And the White House has some carefully planned events scheduled for early in the week.

CNN: Wallace