过分小心 meaning in English

overcaution

A professor at one of beijing's universitys laughed when i recounted my complaints to him about these precautions .
我把这些过分小心的事讲给北京某大学的一位教授时，他放声笑了起来。
But he was very tentative , fastidiously so , letting ruth set the pace of sprightliness and fancy , keeping up with her but never daring to go beyond her
但是他却很小心，甚至过分小心，只紧跟露丝定下的快活和幻想的尺度，不敢轻易越雷池一步。
But the potential damage claim for making a duff rating would be so large that agencies might either be driven out of business or made excessively cautious by the threat of legal action
但是做出欺骗性评估的赔偿应该是巨额的，这样评估机构不会受利益的驱使而从事活动，也不会因为法律的威慑而过分小心。