His respiration grew fainter throughout the day.

一天当中，他的呼吸越来越微弱。

《柯林斯英汉双解大词典》

We could hear their voices growing fainter as they walked down the road.

他们沿路走远时我们听见他们的说话声逐渐模糊。

《牛津词典》

Its parent star is a red dwarf--a far smaller and fainter object than the sun.

其母体恒星就像是一个红色的小矮人——比起太阳来实在是又小又模糊。

youdao

Meanwhile the voice of the woman who had been calling out was getting fainter.

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It's fainter than the light-source bleed found on the Nook, but it's still there.

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"The second effect is the turbulence of the atmosphere makes things fainter, " Tholen said.

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