Free of Charge

One day, a boss arrived early at work and found his assistant kissing his secretary, He yelled, "Is this what I pay you for?"

The assistant answered, "No, sir, this I do free of charge."

Notes:

1. One day, a boss arrived early at work and found his assistant kissing his secretary

某天，有个老板一早到了公司。看到他的助理正在亲吻他的秘书。

"at work" 通常是指“正在工作中”，但也可以表示“在工作场所”。"find" 除了有“找到”的意思，也可以指“(无意中)发现”，若表示“(经调查、研究)发现的结果”，则通常用"find out"。

2. He yelled, "Is this what I pay you for?"

他大喊：“这是我付钱给你的目的吗?”

3. The assistant answered, "No, sir, this I do free of charge."

这个助理回答：“不是的，老板，我做这个是不收钱的。”

"free"若用于表示“免除...的”，需要free后面加of，再加名词，如：free of interest=interest-free(免息)。

interest [ˈɪntrəst]n.利息