New words：

salary [ˈsæləri] n. 薪水

Sample Sentences：

She's on a salary of $24,000.
They get a salary of $21,000 a year.
She asked for an advance on her salary.
My salary is paid directly into my bank.

New words：

humanity [hjuˈmænəti] n.人性；人类；人道；仁慈

Sample Sentences：

We should treat animals with humanity.
We want a peaceful environment for all humanity.
The judge was praised for his courage and humanity.

New words：

benefit [ˈbenəfɪt]
n.利益；益处；优势；成效；福利费
v.对（某人）有用；使受益；得益于；得利于

Sample Sentences：

It will be to your benefit to arrive early.
You must weigh the benefits against the cost.
He couldn't see the benefit of arguing any longer.
We should spend the money on something that will benefit everyone.

New words：

in advance 在…前；预先；事先；（发展上）超前

Sample Sentences：

He is far in advance of his class.
It's cheaper if you book the tickets in advance.
Could you tell me in advance how much the dinner will cost?

New words：

advance [ədˈvæns]
adj.预先的；事先的
n.进展；进步；提高；预付款；前进

Sample Sentences：

Advances in science help all humanity.
Advances in science benefit all humanity.
Please give us advance warning of any changes.
The heavy snow slowed down the advance of the rescue team.
He asked his boss for an advance on his salary to pay for his rent.

benefit [ˈbenəfɪt]
n.益处；优势；成效；福利费
v.对（某人）有用；使受益；得益于；得利于

humanity [hjuˈmænəti] n.人性；人类；人道；仁慈

salary [ˈsæləri]
n.薪水
v.付…薪水