Cách sử dụng
The word "curve" can be used to describe a line that is not straight. For example, imagine drawing a line that starts off going straight, but then starts to bend. That bending part is called a curve! In math, "curve" can be used to describe a graph that shows how things change over time. For example, a graph of the temperature outside might have a curve that goes up in the morning, reaches a peak in the afternoon, and then goes down again in the evening. In everyday language, "curve" can also be used to describe the shape of things. For example, a car might have a "curvy" design if it has smooth, rounded lines instead of sharp angles. Or, a road might have a lot of curves if it winds around mountains or hills. Overall, "curve" is a very versatile word that can be used in many different contexts. Just remember that it generally refers to a line or shape that is not straight!