overhead variance 为可数名词词组,复数形式为 overhead variances。常见句型包括:①“The company reported an unfavorable overhead variance of $50,000.”(公司报告了5万美元的不利间接费用差异。)②“Analyze the overhead variance to identify cost drivers.”(分析间接费用差异以识别成本动因。)易错点:overhead 在此为形容词,修饰 variance,不可分开使用;variance 后常接介词 in 或 between,如 variance in overhead、variance between actual and standard overhead。注意与 overheads(经常开支)区分,后者为名词复数。