翻译一下啦、、、bulb suctioning
题目
翻译一下啦、、、bulb suctioning
答案
bulb suctioning :用接有小橡皮球的管子,抽婴孩口或鼻子的痰,以利呼吸
What is bulb suctioning?
A bulb syringe is used to suction (remove) mucus from your baby’s mouth or nose.Suctioning will make it easier for your baby to breathe.Babies breathe only through their noses until they are about 4 months old.If needed,it is best to suction your baby’s nose and mouth before a feeding,nap,or bedtime.Avoid suctioning after feeding.This may cause your baby to vomit
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已知函数f（x）=x，g（x）=alnx，a∈R．若曲线y=f（x）与曲线y=g（x）相交，且在交点处有相同的切线，求a的值和该切线方程．
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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