And it's actually repeated cycles of reinfection that can cause the most damage.

实际上，反复的感染循环才是造成最大伤害的原因。

Fatigue in steel happens because of repeated cycles of loading.

钢材的疲劳是由于重复的载荷循环而发生的。

But basically, there's like a repeated cycle of those friends leaving.

但基本上，这些朋友的离开就像一个重复的循环。

But this changed after a repeated cycle of thoughtless spending and quickly escalated to high credit card balances, and I was paying hundreds in interest.

但这种情况在经过反复的轻率支出循环后发生了变化，并迅速升级为高额信用卡余额，我支付了数百美元的利息。