The truck was an 18-wheeler with a white tractor.

这辆卡车有18轮，还有一个白色牵引车头。

《柯林斯英汉双解大词典》

My son has trains and accessories, the random truck or tractor, and books.

我的儿子有火车及配件，卡车或拖拉机和书籍。

youdao

The finest gloss magnifier for your auto, car, truck, tractor (lol), airplane, boat, motorcycle, glass, stainless steel, fiberglass, wheels and chrome available.

最好的光泽放大镜为你的汽车，轿车，卡车，拖拉机(笑)，飞机，轮船，摩托车，玻璃，不锈钢，玻璃钢，车轮和铬可用。

youdao

"Right now a tractor-trailer load of illegal cigarettes will net the truck driver about $2 million in profit."

VOA: standard.2010.08.11

The multi-part accident involved two school buses, a GMC pick-up truck and a truck-tractor with no trailer.

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But another tractor-trailer appeared to hem the truck in to the right lane.

CNN: SHARE THIS

There's a tractor-trailer overturned near a tree, and the only upright and functioning truck on this road is driven by men from the local power cooperative.

NPR: Cameron Parish Hit Hard by Hurricane Rita