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1·The upper clarion register is the most difficult for circular breathing.

高音区对于循环呼吸来说是最难的音区。

2·The following exercise proves very useful in beginning circular breathing study.

以下练习在学习循环呼吸的开始阶段是十分有用的。

3·As in any new technique, circular breathing must be practiced on a daily basis for success.

正如许多其它新技巧一样，循环呼吸必须每天都进行练习。