名词
中文翻译：Unknown
同义词：
['travel', 'journey', 'voyage']
例句：
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1. Thefront travel is always full of excitement andchallenges.
前线旅行总是充满兴奋和挑战。
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2.She decided to go on a front travelto explore the new city.
她决定去前线旅行以探索这个新城市。
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3. Thefront travel was filled with danger and uncertainty.
前线旅行充满了危险和不确定性。