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本文是一篇应用文。本文主要针对不会说外语的旅行者到国外旅游提出了几条建议，包括下载翻译软件、使用肢体语言、出发前学习关键词、利用当地旅行社的帮助以及雇用当地导游。
1．In what situation should a language translation app be applied while traveling abroad?
A．When you have trouble pronouncing the words.
B．When you want to acknowledge your ignorance.
C．When you want to practice the local language.
D．When you feel uncomfortable in the country.
解析：选A 细节理解题。根据题干中的关键词“a language translation app”定位至第二段，根据该段第二句“Ideally，find one that specializes in the language you need to translate especially if the language uses a character set you're not familiar with，or have difficulty pronouncing.”可知，在该语言使用你不熟悉的字符集或者你发音有困难时，你应当下载翻译软件，故A项正确。