Cách sử dụng
The word 'spiral' can be used to describe a shape that looks like a coil or a spring. It can also be used to describe a series of events or actions that seem to be getting more and more out of control. For example, a staircase can be a spiral staircase, which means it spirals up to the next level. A spiral notebook has pages that spiral out from a central point. When talking about something that is spiraling out of control, we might say, "My expenses are spiraling out of control and I need to cut back on my spending."