'My hands are tied' means that I can't help you.

“My hands are tied”的意思是我不能帮你。

" To loosen the tie" means relax, don't be so serious, don't be so stiff.

“放松你的领带”的意思是放松，不要那么严肃，不要那么僵硬。

You know what a new tie means?

知道新领带意味着什么吗？

" To break (break) a tie" means that you are no longer evenly split.

“To break（打破）平局”意味着你们不再平分秋色。

" Black tie" means that it will be a very formal, a very fancy event, and the men will have to wear tuxedos.

“黑色领带” 意味着这将是一个非常正式、非常华丽的活动， 男士们必须穿燕尾服。

I'm a little tied up with my project deadline right now, but I can help you out on Monday to be tied up means to be already occupied or engaged with something else.

现在我的项目截止日期有点紧，但我可以在周一帮你。 忙乱的意思是已经忙于或参与其他事情。