直线
مستوى HSK 5
بينيين: zhí xiàn
ترجمة: خط مستقيم
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这条直线与那条直线平行。 Zhè tiáo zhíxiàn yǔ nà tiáo zhíxiàn píngxíng. This line is parallel to that line.
直线与圆相交于两点。 Zhíxiàn yǔ yuán xiāngjiāo yú liǎng diǎn. The line intersects the circle at two points.
直线的斜率为k。 Zhíxiàn de xiélǜ wèi k. The slope of the line is k.
直道 (zhí dào) straight road
直线段 (zhí xiàn duàn) straight line segment
曲线 (qūxiàn) curve
弧线 (húxiàn) arc
The Chinese word 直线 (zhíxiàn) for "straight line" is composed of two characters: 直 (zhí) and 线 (xiàn). The character 直 originally meant "upright" or "straight," and was often used to describe something that was not crooked or bent. Over time, it came to be used more broadly to mean "direct" or "straightforward." The character 线 originally meant "thread" or "string," and was often used to describe something that was long and thin. Over time, it came to be used more broadly to mean "line" or "boundary."When the two characters 直 and 线 are combined, they form the word 直线, which literally means "straight line." This word is used in a variety of contexts to refer to a line that is not crooked or bent. For example, it can be used to describe the path of a moving object, the boundary of a shape, or the edge of a surface.
