We are all intimately familiar with at least one language, yet few of us ever stop to consider what we know about it.
虽然我们人人至少通晓一门语言，但很少有人会静心思考一下对语言了解什么。
We are all intimately familiar with at least one language, yet few of us ever stop to consider what we know about it.
虽然我们人人至少通晓一门语言，但很少有人会静心思考一下对语言了解什么。
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