直线

1. straight line

♦ 两点之间以~为最短。 A straight line is the shortest distance between 2 points.

♦ ~距离20里 twenty li as the crow flies

♦ ~飞行 rectilinear (or straight) flight

2. steep; sharp (rise or fall)

♦ 捕鱼量~上升。 The total catch of fish has shot up.

~加速器 [物]linear accelerator~运动 [物]rectilinear motion