Why on earth are we addicted to soaps ?请用英语回答

Actually, not every one is so addicted to soaps.
For your question. I think it is better to ask why on earth are soaps so attractive to us?
Soaps are all about daily life, not limited to but higher and imaginary. People love things which are familiar to them. This what we called humanity or human nature things.
Besides, those who addicted to soaps are house wives and young people who got lots of time and don't know where and how to spend. Soaps are just their taste.
Both two reasons, that is why the question you asked.

1. We like them.
2. We can get clean and more beautiful with their help.
3. We like the scent from them.

究竟为什么我们总是喜欢听恭维话呢？
soft soap 软肥皂 诌媚, 奉承

这里用到了两个短语句型。
1.on earth，它有两个意思，一个是“在地球上”，另一个是“究竟”，在这句中的意思是“究竟”。
2.be addicted to……，它的意思是“沉溺于，成瘾于”，
所以这句话的意思是，“究竟为什么我们这么喜欢汤？”

我们究竟为什么对肥皂剧上瘾呢

我们究竟为什么在贿赂中无法自拔？