求翻译：在别人看来，采购就是夹心饼干中间的那层牛奶，又香又甜又好吃，孰不知被夹在中间的那种感觉却是很要命的！是什么意思？

In the eyes of others, procurement is the sandwich cookies that layer in the middle of cow's milk, delicious and fragrant and sweet, which is not known to be caught in the middle of that feeling is very fatal!