“拉胡尔，”她压低声调恳求。
低声调的吠叫意味着狗狗挑衅，可能也是一种威胁。
A low pitched bark indicates aggression and is possibly a threat.
为此他变成了我实际的老师，所以我不得不放低声调耐心地听他的“科学课”（表述）。
Therefore, he becomes my teacher to be exact. So, I have to lower down my voice and listen very carefully to his "class" (presentations and statements).
在不同的语言里压低声调可能代表不同的意思，不过在英语里当一个人降低其声调往往是要表现出坚定和权威性。
In English, a lowered vocal tone shows firmness and authority.
在不同的语言里压低声调可能代表不同的意思，不过在英语里当一个人降低其声调往往是要表现出坚定和权威性。
In English, a lowered vocal tone shows firmness and authority.
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