The boxer was down for the count. [=knocked out]这名拳击手被击倒失败了。

The company may be about to go down for the count. [=may be about to fail completely and go out of business]公司可能快要倒闭了。

Two minutes after getting into bed, I was out for the count. [=I was sleeping deeply]上床后两分钟，我就沉沉地睡着了。