他打个结把两根绳子系在一起。

He tied the two ropes together with a knot.

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他把两根绳子打了个结连成一根长绳子。

He tied a knot with the two ropes to make one long rope.

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将两根绳子和在一起制成一根高性能的绳子。

Actually two ropes combined into a single top performing rope.

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他们绷紧两根柱之间的绳子。

They strained the rope between the two posts.

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他们绷紧两根柱之间的绳子。

They strained the rope between the two posts.

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