Business boomed for a while, but the good times were short-lived.
Tips
usage
Usually used retrospectively — after the good times have ended, as a sad or resigned comment. Frequently paired with 可惜 (sadly) or followed by what went wrong. Not a warning about the future; a lament about the past.
memory
好 (good) + 景 (scene) + 不长 (not long). Think of a beautiful sunset — gorgeous but fades fast.