This water can then be emptied when the boat is put on a trailer, to make it lighter for easier trailering.

当船被放在拖车上时，这些水可以被放掉，让船更轻，便于拖载。

youdao

The car was pulling a trailer, which carried a boat.

那部车拉着一辆拖车，拖车上又载着一只船。

youdao

We paid $2000 for the boat, with the trailer and spares thrown in.

这艘船包括拖船费和其它费用，花了我们2000美元。

youdao

Plus, unlike most crossovers, most traditional SUVs boast substantial towing capacities when properly equipped and can easily pull a sizeable boat to the lake or a family-sized trailer to a campsite once the weather turns warm.

FORBES: Best Deals On Winter-Rugged Family Vehicles