n. a tight cluster of people or things
n. any of various fastenings formed by looping and tying a rope (or cord) upon itself or to another rope or to another object
n. a hard cross-grained round piece of wood in a board where a branch emerged
n. something twisted and tight and swollen
n. 结, 群, 难题
v. 打结, (使)纠缠
1. I tied a knot in the rope to secure the tent.
我在绳子上打了个结，以固定帐篷。
2. Can you help me untie this knot?
你能帮我解开这个结吗？
3. She wore a beautiful ribbon with a bow knot on her gift.
她在礼物上系了一个漂亮的蝴蝶结。