stay knot

例句：

1. 1.He tied a knot in the rope to secure it.
   他系了一个结来固定绳子。
2. 2.The dress has a small button at the waist.
   这件衣服腰部有一个小扣子。
3. 3.She used a needle and thread to mend her torn shirt.
   她用针线把破衬衫缝补好。