1. Please untie the knot in the rope before you use it.
请在使用之前解开绳子上的结。

2. The magician was able to untie himself from the chains in just a few seconds.
魔术师在几秒内就成功地从链条中解开了自己。

3. I struggled to untie the tangled shoelaces on my sneakers.
我费力地解开了球鞋上交织在一起的鞋带。

4. Can you untie the ribbon on this gift for me?
你能帮我解开礼物上的丝带吗？

5. The sailor had to untie the boat from the dock before setting sail.
水手必须在起航前从码头上解开船只。

6. It took me a while to untie the complicated knot in the necklace.
我花了一些时间才成功解开项链上复杂的结。