1 . 发现了治愈阿尔海默兹病症的方法是医学上的一个重大的进步。
The discovery of a cure for Alzheimer's disease was a major medical a______ .
The discovery of a cure for Alzheimer's disease was a major medical a
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2 . 我最早的童年记忆之一是母亲在炉火旁给我读故事。
One of my earliest childhood m______ is of my mother reading stories to me by the fire.
One of my earliest childhood m
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