Long-term problems include that the foreign speakers will have their own terms of expression combined into the language native to the area, which often makes for awkward sentences to a native speaker. Native students tend to develop an exclusive attitude toward the nonnative speaker because they feel threatened when they do not understand the foreign language. Short-term problems include the fact that native students will usually lack in-depth knowledge of the nonnative cultures, which makes them more likely to be unwilling to communicate with the foreign speakers.