It doesn’t require repeated treatments or repetitive cycles of chemotherapy, ” said Riddell.

这个过程不需要反复地治疗或化疗。”

It doesn't require repeated treatments or repetitive cycles of chemotherapy, ” said Riddell.

它不需要重复治疗或重复化疗周期， ” Riddell 说。

We put the marble inside of these pools of fresh water, and we cleaned it with a repetitive cycle of fresh water.

我们将大理石放进清水池中，然后用重复循环的清水进行清洗。

This can be a repetitive cycle where you may be made to feel like something is your fault even if it isn't.

这可能会造成一种恶性循环，你会觉得有些事情是你的错，即使事实并非如此。