，跟cart的关系只要看词形就能看出来，现 例如：carry（拿）的原义是用车运（transport by cart） 在把by cart这一语义选择限制去掉了，这个词的词义范围也就扩大了。
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The roadbed fills USES the dump truck to transport by cart, the bulldozer, the road roller booth is even, the bulldozer roller compaction is dense.
路基填方采用自卸汽车拉运，推土机、平地机摊平，压路机碾压密实。
Automated Guided Vehicles are used to consistently and predictably transport loads of material to places that might otherwise be serviced by fork lift trucks, conveyors, or manual cart transport.
用于不间断的、预定好的材料运输，否则要使用叉车、运输机或手推车运输。
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