从品质上说，毫无疑问，施行高税额已经减少了抽烟现象，但是就是如此说法，从统计学观点来看也很难确定究竟是什么导致了真正的减少。

Qualitatively there is no doubt that higher taxes have reduced smoking, but with that said, it's very difficult from a statistical standpoint to figure out what caused the real reduction.

youdao

从品质上说，毫无疑问，施行高税额已经减少了抽烟现象，但是就是如此说法，从统计学观点来看也很难确定究竟是什么导致了真正的减少。

Qualitatively there is no doubt that higher taxes have reduced smoking, but with that said, it's very difficult from a statistical standpoint to figure out what caused the real reduction.

youdao