ever和before连用会致使意思重复吗

Have you ever worked as a cashier before？

ever和before 一个过去，一个之前，意思不会太重复吗？

为何常常看到一个句子同时用它们2个呢？

Have you ever worked as a cashier before？

ever和before 一个过去，一个之前，意思不会太重复吗？

为何常常看到一个句子同时用它们2个呢？

【答】只用其中一个已经足够。语言贵在精炼。比如：Have you ever thought of changing your job？你想过换一下工作吗？...... Have youever beento Rome ?你去过罗马吗？（摘自《牛津高阶英汉双解词典》第9版）Have you worked as a cashier before？