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。
The most surprising thing about it, however, is that it can land anywhere: on snow, water, or even on a ploughed field.
雪地上,水面上,甚至刚耕过的田里。