英语短文翻译（不要机器翻译）

英语短文翻译（不要机器翻译）
a giant ship engine that failed? The ship's owners tried one expert after another, but none of them could figure but how to fix the engine.
Then they brought in an old man who had been fixing ships since he was a youngster.
He carried a large bag of tools with him, and when he arrived, he immediately went to work. He inspected the engine very carefully, top to bottom.
Two of the ship's owners were there, watching this man, hoping he would know what to do. After looking things over, the old man reached into his bag and pulled out a small hammer.
He gently tapped something. Instantly, the engine lurched into life.
He carefully put his hammer away. The engine was fixed! A week later, the owners received a bill from the old man for ten thousand dollars.
What?! the owners exclaimed. “He hardly did anything!
So they wrote the old man a note saying, Please send us an itemized bill.
The man sent a bill that read:
Tapping with a hammer.. $ 2.00
Knowing where to . $ 9998.00
mabey each one of us should know that Effort is important, but knowing where to make an effort in your life makes all the difference.

一艘巨轮的引擎坏了,轮船的主人们请了一个又一个的专家,但无人能说出怎样才能修好引擎（无人能修好引擎).
于是,他们找来了一个自年轻时就开始修船的老人.
老人带着一大包的工具（来了）.一到达目的地,他就立刻开始工作了.他从头到尾地仔细检查了那个引擎.
轮船拥有者中的两位在现场,观察着老人,希望他能找出解决的办法.老人在检查完后,从他的包里拿出一把小锤.
他轻轻敲了敲某些地方（东西）,发动机就活过来了（开始工作了）.
他小心翼翼地把小锤收好,引擎修好了.一星期后,船主们收到了老人寄来的一张一万美金的账单.
“什么?”那些船主叫道,“他几乎什么也没做!“
于是,他们给老人写了张纸条（回复老人）,写道：“请寄一份有各项收费明细的账单过来.“
老人又寄来了一分帐单,上面写着：
用小锤敲打：2美元
知道问题所在：9998美元
也许我们每一个人都会知道努力是很重要的,但要知道在生活中的哪些方面付出努力,那可就不一样了（有不同意义了）.