Because you could smoke crack cocaine -- you can't smoke powdered cocaine -- and smoking is a much more efficient mechanism of delivering a high than snorting it.
因为你可以像吸烟一样吸入快克--粉末状可卡因是不能用嘴吸的-- 相比于用鼻子吸入来说， 用嘴吸入可以更快地带来高潮。