Make a hard knot.

打一个结实的结。

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The paper wrote that a job description for the post of Chikurubi prison hangman included, "dexterity, ability to tie a knot, hard heart and anyone prone to mercy or hesitation need not apply."

报纸写道，作为奇库鲁比监狱刽子手岗位的工作说明，包括“灵巧，打绞索绳结的能力，冷酷的心，可是容易产生怜悯或心存犹豫的人不适宜去申请。”

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Most Americans still believe that the interplay of schools and culture is a complex and hard-to-untangle knot.

大多数美国人仍相信学校和文化的相互作用是一个复杂而难解的结。

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