I might have lost the company if I had made a fuss over the lost customer.

如果我因为失去了客户而打马虎眼，我可能失去了公司。

youdao

She lost her temper with a customer and shouted at him.

她对一位顾客发了脾气，冲着人家大喊大叫。

《牛津词典》

In some cases, U.S. industry has lost sight of customer needs in designing products.

在一些情况下，美国工业在设计产品时忽略了顾客的需求。

《柯林斯英汉双解大词典》

Since there is little evidence that people intend to buy multiple tablets, each new iPad owner represents a lost customer for these firms.

FORBES: Why The New IPad Retail Plans Matter

The incident followed dozens of cases where banks and other financial institutions have lost customer details - whether through negligence or criminal activities - both in the UK and around the world.

BBC: Indian call centres say they are as good as any

"If they don't go to your direct site, you can kind of say you lost the customer, " he said.

WSJ: Avon Works to Catch Up on Social Media