However, this can also be due to the inefficacy of the drug and at this time we may wish to change the treatment to prevent disease progression. 但是，這也可以因藥物無效所致，那么此時我們可能希望改變治療方案從而防止這種無反應進展。
常用短語
The usual inefficacy of the lamps, which..shed but a dying glimmer even while they burned.