•"He's gone away for six months, " she said sadly.“他已经走了六个月了，”她伤心地说。

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•Sadly, the treatment doesn't work for all patients.很遗憾，这种治疗并不是对所有的患者都有效。

•If you think she'll let you do that, you're sadly (= completely) mistaken.如果你认为她会让你那么做，你就大错特错了。