试题题干
Registers are also known as () dialects. Depending on particular speech situations, the words a speaker uses may vary from formal to plain, such as commence - begin.
参考答案
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试题解析
语域也称为情景方言。根据特定的语音情况,说话者使用的词可能从正式变为普通的,例如:commence(开始)-begin(开始)。