Setting up an event loop 设置事件循环
If you've ever done any event-driven programming in the past, I think you'll find signals to be a refreshing change from the common practice of setting up an explicit event processing loop.
如果您过去曾经编写过事件驱动的程序，那么我认为您会发现，对于设置显式事件处理循环这一常见做法，使用信号是一个令人耳目一新的变化。
When interest rates are low, consumers and businesses do not just borrow money; they borrow money to buy assets, setting up a feedback loop that can eventually lead to a bubble.
当利息较低时，消费者与商人并非仅仅借贷资金，他们将借来的钱购买资产，形成反馈循环，最终导致泡沫。
They borrow money to buy assets, setting up a feedback loop that can eventually lead to a bubble.
他们还借钱购买资产，建立一个反馈回路，可最终导致了泡沫的生成。
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