形车架 x-frame cruciform frame x; x-frame x; x-type frame x
地形 (地面起伏的形状) topography; landform; relief; lay of land; relief feature; surface feature; terrain 复杂的地形 a varied topography; 地形地物 the terrain and its features; 地形优越 enjoy topographical advantages
安全地 in safety ;safely; in security; safe and sound; safest; securely; surely; without a ccident(=safely); without accident (=safely); without accident(=safely); without accident(=safely)
完全地 absolutely; all to piece; back and edge; bag and baggage; completely; entirely; fully; head over heels; hollow; home; lock, stock and barrel; perfectly; properly; radically; sheerly; slickly; soundly; spang; to a fractional; to one's fingertips; to perfection; to the full; to the nail; toafractional; toone‘sfingerti; toperfection; totally; tothefull; utterly; wholly