中英释义：
双语例句
序言的目的是对这些问题答案的总结。
Your aim in the introduction is to summarise your answers to these questions.
现在是一个探索这些问题答案的机会。
This is an opportunity to explore some answers to such puzzles.
重点词汇
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这些
these; such
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问题
question; problem; issue; matter; subject; trouble; point; query; conundrum; woe; rub; snag; shauri; Q; problematic; questionable; problematical; debatable
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答案
answer; solution; key; response; reply