But soda past its expiration date goes flat and loses much of its taste.

但是过期的苏打水跑气，味道也会大打折扣。

《柯林斯英汉双解大词典》

But, the image still reads a little flat for my taste and is lacking hierarchy.

但是，在我看来这张图还是有点平，缺少层次感。

youdao

With out sufficient acidity, the coffee will tend to taste flat.

没有足够的酸度，咖啡就趋于平淡。

youdao

With out sufficient acidity, the coffee will tend to taste flat.

没有足够的酸度，咖啡就趋于平淡。

youdao