There's too much slack in the tow rope.

拖缆太松。

《牛津词典》

I'd also guess that these hybrids won't do as well in winter and won't tow as much.

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They won't haul or tow as much cargo as the bigger Chevrolet Silverado and GMC Sierra but will offer four-cylinder engines, better fuel economy and should cost less.

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Greyhound Lines can't look for much of a tow from its parent, Laidlaw International.

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