时差反应是每一个国际旅行者可能遇到的问题。
The problem of Jet Lag is one every international traveler comes across.
时差反应是每一个国际旅行者都可能遇到的问题。
Jet lag is a problem every international traveler may come across.
一般的旅行往往对环境有负面影响，旅行者常引起一些问题。
Normal tourism is often bad for the environment, and tourists often cause problems.
时差反应是每个国际旅行者可能遇到的问题。
The problem of Jet lag is one every international traveler comes across at some time.
时差反应是每个国际旅行者可能遇到的问题。
The problem of Jet lag is one every international traveler comes across at some time.
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