直线 zhíxiàn straight line
straight line; sharply (rise or fall)
怎么记住“直线”: 直 straight + 线 line = straight line.
汉字
用法
- A straight line in math - 两点之间直线最短 (liǎng diǎn zhījiān zhíxiàn zuì duǎn) the shortest path between two points is a straight line.
- Figuratively means a sharp, uninterrupted rise or fall: 销量直线上升 (xiāoliàng zhíxiàn shàngshēng) sales shot straight up.