knot

The boy struggled to untie the tight knot that he had accidentally made in his shoelaces.

(Chinese) 男孩费力地解开他不小心在鞋带上打的一个死结。

Sailors must learn how to tie several different types of knots to secure the boat's sails.

(Chinese) 水手必须学会如何打几种不同类型的绳结，以固定船帆。

The cruise ship was traveling at a steady speed of twenty knots when it left the harbor.

(Chinese) 邮轮离开港口时正以二十节的稳定速度行驶。

Wind speeds during the tropical storm reached over fifty knots, causing damage to light structures.

(Chinese) 热带风暴期间的风速达到了五十节以上，对轻型结构造成了损坏。