be in a jam

基本解释

If I took the bus, I'd have to spend time waiting for it, and then I could be trapped in a traffic jam.
如果我乘公交车，就不得不花时间去等车，然后再忍受堵车之苦。
blog.sina.com.cn
With PRISM, he says, the gut feeling that peanut butter should be placed on a shelf next to jam in order to increase the likelihood of a combination purchase can be tested directly against sales data.
但是更精准的数据可以指引工作人员将花生黄油放置在果酱旁边以促进连锁消费。
It's difficult to be patient when you're stuck in a traffic jam.
碰到交通堵塞的时候很难有耐性。
blog.sina.com.cn

It really is true that those tasked with running an entire continent, the bureaucrats in Brussels, think that putting home made jam (jelly to you perhaps) in used jam jars should be and is a crime.
FORBES: Now The European Union Starts To Ban Recycling
The enthusiasm about startups can also be found in small gatherings such as the Open Mic Idea Jam, a standing room-only event that was held at a popular pub in downtown Dublin in which entrepreneurs have three minutes to pitch their ideas.
FORBES: How Entrepreneurs Can Save Ireland
There will soon be a big traffic jam at 3-D theaters as Alice in Wonderland (which hit theaters last weekend), Clash of the Titans and How to Train Your Dragon all jostle for those screens.
FORBES: 3-D Boom Powers Hollywood To Box Office Record