1. It outweighs by more than four times the go-cart-size Spirit and Opportunity overs now prowling the Red Planet. 现在正在火星上四处跑的精神号和机会号，大小相当于小型赛车，相较之下，MSL的重量是它们的四倍。
2. The client is accompanied to learn a car in big winter, car defect enters water hole later in, we took off a shoe, go in glacial water go-cart. 大冬天里陪客户学车，后来车陷进水坑里，我们就脱了鞋，到冰水里去推车。
3. Stylist people solve even ark small go-cart this problem with, install flat the stratosphere at small go-cart, do temporarily work station, gone pusher answers ark inside. 设计师们就用一个连柜小推车解决这个问题，将平板设置于小推车的最上层，做临时的操作台，用完后推回柜内。
英英解释
n.
1. an enclosing framework on casters or wheels; helps babies learn to walk
2. wheeled vehicle that can be pushed by a person; may have one or two or four wheels
3. a small vehicle with four wheels in which a baby or child is pushed around
