1A curve — a smoothly bending line as opposed to a straight line, used in shapes, graphs, and design.
このグラフは美しい曲線を描いている。
This graph draws a beautiful curve.
山道は曲線が多くてカーブに注意が必要だ。
The mountain road has many curves, so you need to watch out for the bends.
数学の授業で曲線の傾きを求める方法を習った。
In math class, we learned how to find the slope of a curve.