mother tongue, the first language you learn as a child., learning strategies, ways that help you learn better., foreign, from another country, not your own., native speakers, people who speak a language as their first language., slang, very informal words that people use with friends, not in formal situations., jargon, special words used by people in one job or activity., fluency, speaking easily and quickly, without long pauses., accuracy, speaking or writing without mistakes., skill, the ability to do something well., bilingual, able to speak two languages very well.

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