But as a number one rule, if you have to lower your larynx to sing a low note or raise your larynx to sing a high note, then they are not a part of your singing range.

• 这里有一个最基本的规则：如果你唱到(某)低音的时候，必须把喉头压低，唱到(某)高音的时候，必须把喉头抬高，那些音就不在你的音域之中。