Jack stared at Tony, his voice soft steel: "As long as you can."

杰克盯着托尼，他的声音不高，却像钢铁一样坚定：“有多久拖多久。”

youdao

She tried to render her voice soft, but only succeeded in making it very deep.

她想把她说话的声音装得非常柔和，结果却只能发出极沉的声音。

youdao

His voice was soft, yet laden with threat.

他说话的声音很柔和，但充满了恐吓的语气。

《牛津词典》

Like many songs on the album "Quiet Nights" it is a good example of Diana Krall's soft and smoky voice.

VOA: special.2009.04.24

So according to John, the presumed author of Revelation, it's not poets who get to wed their songs to the soft voice streams.

据约翰所说，《启示录》的作者，估计不是那些致力于细声软语音乐的诗人。

耶鲁公开课 - 弥尔顿课程节选

Her voice was soft and breathy.

VOA: special.2009.12.06

The technology would enable a person talking to someone with a loud, high-pitched, rapid-fire voice to sound similar even if his actual voice was soft, low and slow, for instance.

FORBES: Stanford Developing Vocal Cosmetics Technology To Make Cellphone Talkers More Likable

The voice was soft and gentle.

FORBES: An Internet Carol

If a prototype developed by Nokia Research and the Helsinki Institute of Information Technology ever translates to production, however, it'll be as much a part of personal phone conversations as a soft voice or a cheeky text message.

ENGADGET: ForcePhone from Nokia Research, HIIT sends positive vibes with a squeeze