to reveal a secret accidentally
不小心透露秘密 (bu xiaoxin toulou mimi)
"She let the cat out of the bag about the surprise party."
"她不小心透露了惊喜派对的秘密。" (ta bu xiaoxin toulou le jingxi paidui de mimi)
to not worry about something until it happens
old friends are precious and valuable
to understand the full scope of a situation or problem
having a very bad memory
past one's prime; no longer young or at peak performance
to make sure the team remains focused and organized