I've been doing this job for 25 years, and I tell you you're going to stuff it up doing things this way.
我干了这工作已有25年了,告诉你,你这样做事情,会把事情办糟的。
In the beginning they used to carve Chinese characters on stones to record important dates in history.
开始时,他们常把汉字刻在石头上,记载历史上重要的日期。