核心问题
his last book 与 his latest book 在意义上有无区别？
词典解答
由于 last 具有“最近的”和“最后的”两个词义，所以 his last book 是有歧义的：1. 他的最近(出版)的那本书(作者尚在世)，如 His last book is his best so far.（他最近出版的那本书是他迄今写得最好的一本书。）；2. 他最后的著作(暗示作者已不在人间)，如 His last book was published in 1980。而 his latest book 就无这种歧义，总是指“他最新出版的那本书”。
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Do you know the latest novel written by Charles Dickens? A B C D
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The ____ edition of the dictionary is far better than the previous ones. A. late B. latest C. last D. lasting