One sound more, or sound better, a mellower sound and so forth.

一把可能音量大一些，或音色好一点，另一把甜美一些等等。

youdao

She was singing some devotional songs and the voice was getting richer and mellower .

她正在唱一些祈祷歌，声音越来越宏亮而圆满。

youdao

The coffee made from this kind of coffee Bean tastes richer, mellower and more satisfactory.

用这种咖啡豆制成的咖啡，口味更浓、更醇、更令人满意。

youdao

The new CD is mellower, more acoustic and much more focused on delivering clean, comprehensible, radio-friendly, grown-up pop songs.

NPR: Gomez: 'How We Operate'

BasicNet acquired Jesus Jeans in the 1990s through a bankruptcy and relaunched the brand in 2011 with a mellower image.

WSJ: If You Take These Jeans' Name in Vain, Prepare to Meet Their Maker

Tennessee Whiskey is very similar to Bourbon, though some are perceived as being mellower than other whiskies due to filtering through charcoal.

FORBES: What Are The Consumer Differences Between Scotch, Bourbon, And Tennessee Whiskies?