可数名词：

1.赤字；逆差；亏损

2.缺乏，不足；不足数额；缺陷

3.落后，失利

英语解释

(sports) the score by which a team or individual is losing

the property of being an amount by which something is less than expected or required

a deficiency or failure in neurological or mental functioning

an excess of liabilities over assets (usually over a certain period)