S-6：shake...to the/one's foundations 大吃一惊
A:I have something for you. It will shake you to the foundations.
A.:我有件事要告诉你，一定能使你大吃一惊。
B:What? Please tell me.
B：什么？请讲吧！
A:Your sister-in-law is my brother's former lover.
A:你的嫂子是我哥哥以前的恋人。
B:Oh,my gosh. It's so unbelievable.
B：哦，天啊，太难以置信了。
