He couldn't let these people get hurt, let alone his son...
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let alone his son
更不用说他的儿子了
以上为机器翻译结果，长、整句建议使用 人工翻译 。
With the growth of his son, Mr. Smith found that his life was so empty and boring in that he could not write any poems any longer, let alone published them.
随着他儿子的成长，史密斯先生发现他的生活是如此的空虚和无聊，因为他无法再创作了，更不用说出版了。
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