Baby boys do not seem to notice the difference in the size of the ball, but girls immediately become excited and begin to make noises that sound like language.

男婴似乎没有注意到球的大小的不同，但女婴立即变得兴奋，并开始发出听起来像是语言的声音。

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The number one sound to wake women - whether or not they were mothers - was the sound of a crying baby.

相反，最能吵醒女人的声音正是宝宝的哭声，不管她是不是一个母亲。

youdao

Don't whine about it or you'll sound like a baby boomer.

不要抱怨，否则你将永远只像是个长不大的孩子。

youdao

While it marks a return to his blues roots, it also contains the band's signature rock and roll sound on tracks like "Rock Me Baby."

VOA: standard.2010.06.27

This is what--this is where the humor for that baby comes in, which is you couldn't predict when the sound was coming and some aspect of that was what made it so funny then, what elicited the laughter.

这就是…,为什么那些婴儿那么好笑，因为你猜不到他们什么时候会笑,因此我们才觉得好笑，引起我们大笑。

耶鲁公开课 - 心理学导论课程节选

It involves an instrument sending a sound into the baby's ear and measuring the level of returned sound which calculates the level of hearing function.

BBC: Babies' hearing problems undiagnosed

"Unlike traditional baby monitors, WeMo Baby gives you clear digital sound without range limits, meaning you can check on your baby from places other monitors may not reach, like the backyard or even away from home, " said Jamie Elgie, senior director of product management for Belkin.

ENGADGET: Belkin WeMo Baby monitor lets you listen to Junior via an internet connection and an iOS device

Ms. MURRAY: As soon as she lays down, the baby starts going (kissing sound).

NPR: National Zoo Welcomes Baby Panda