Cut a length of cord and tie a knot, thread the other end through the hole and tie it with the other end together into a loop.

剪下一段线并系个结，穿过小洞将线头与另一线头系上，形成一个圆环。

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Danes may tie the knot with anyone (same-sex marriages included), but getting a foreign spouse into the country is harder.

ECONOMIST: One consequence of Europe's toughest immigration laws