9. The newborn baby has beautiful smooth skin.
新生儿有着漂亮光滑的皮肤。
还能这样说：
The skin of the newborn baby is beautiful and smooth.
The newborn is lovely for his beautiful smooth skin.
应用解析：
make things smooth for sb. 为某人排除困难；
a smooth voice 悦耳的声音；
a smooth temper 温和的脾气；
have a smooth time 过得好快活
10. What an adorable child!
多可爱的孩子！
还能这样说：
How adorable the child is!
The child is so adorable.
应用解析：
child's play 容易做的事；
be with child 怀孕；
child benefit 儿童补助金（政府发给儿童的父母，到儿童某一年龄为止）
11. Why do people hold parties before the baby is born?
为什么人们要在婴儿出生前举行聚会呢？
还能这样说：
Can you tell me the reason why people throw a baby shower before the baby comes into the world?
Do you know the reason for holding a party before the baby is coming?
应用解析：
hold sb. to sth. 使某人遵守（谎言）；
hold sth. together 使团结一致；
hold with sth. 同意或赞成
12. Baby showers are usually held ahead of a month or two before the baby's arrival.
新生儿聚会通常在婴儿出生前的一两个月举办。
还能这样说：
People usually arrange a party to celebrate the new baby before it is born ahead of one or two months.
Baby showers are usually a month or two before the baby is coming into the world.
应用解析：
Go ahead! 前进，有进展；继续干下去。
13. The new arrival is a girl.
新生儿是个女孩。
还能这样说：
It's a baby girl.
The newborn is a girl.
应用解析：
arrive at sth. 达成或得出某事物；
arrive at full age 达成成年；
arrive at a conclusion 得出结论
14. The birth of a baby is truly a joyful event.
生孩子真是件喜事。
还能这样说：
It's a bless event to have a baby.
It's exciting to deliver a baby.
应用解析：
by birth 在血统上，天生地；
give birth to 出生，产生；引起；造成；
second birth 复兴，再生
15. She gave birth to a baby when she was 50.
她50岁时才生了个儿子。
还能这样说：
She had a baby son at the age of 50.
When she was 50 years old she had a baby.
谚语：
Napoleon himself was once a crying baby.
即使是拿破仑，过去也是啼哭的婴孩。
16. The baby has a good appetite.
这个婴儿食欲很好。
还能这样说：
The baby has a hearty appetite.
The baby drinks much.
谚语：
A good appetite is a good sauce.
饥不择食。