"spit up" in Chinese (Simplified)
吐奶吐出（食物，婴儿）
Definition
指婴儿喂奶后将少量奶或食物吐出来，也指轻微呕吐，通常不剧烈。
Usage Notes (Chinese (Simplified))
通常用于婴儿；'spit up' 指轻微、不用力的呕吐（不像 'throw up' 那样剧烈），多用于奶、水或流食。属于口语，别与 'spit'（吐口水）混淆。
Examples
Babies often spit up after drinking milk.
婴儿常常在喝奶后**吐奶**。
He spit up a little on my shirt.
他在我的衬衫上**吐了点奶**。
Why do some babies spit up so much?
为什么有些婴儿**吐奶**这么多？
Don't worry, it's normal for newborns to spit up after feeding.
别担心，新生儿喂奶后**吐奶**很正常。
He barely spit up compared to most babies!
和大多数婴儿比起来，他几乎没怎么**吐奶**！
If your baby spits up often but seems happy, it's usually nothing to worry about.
如果你的宝宝经常**吐奶**但看起来很开心，通常没什么可担心的。