be in a jam 陷入困境
jam指“擁擠，阻塞”。該習(xí)語的字母意思為“在擁擠之中”，引申為“陷入困難的處境”。例如：She is in a bit of jam about money. （她的手頭有點拮據(jù)。）
A: Mike told me that his business was in a jam and he was in urgent need of money. He wanted to borrow some money from me. 邁克告訴我他的生意陷入困境，急需用錢。他想向我借錢。
B: Don’t lend money to him. He's always lying. 別借錢給他。他總是說慌。
A: But I think he is really in difficulty this time. 但這一次我看他是真的遇上困難了。