不及物动词
名词
1. 斜面;斜坡;坡面
A ramp is a sloping surface between two places that are at different levels.
2. (车辆进出主路时用的)匝道,坡道
An entrance ramp is a road which cars use to drive onto a major road, and an exit ramp is a road which cars use to drive off a major road.
1. an inclined surface connecting two levels
Synonym: incline
2. a movable staircase that passengers use to board or leave an aircraft
3. North American perennial having a slender bulb and whitish flowers
Synonym: wild leekAllium tricoccum