半变动制造费用semi: n. 1.〔口语〕=semitrailer. 2.〔英俗 ...variable: adj. 1.易变的,变化无常的,无定的 (opp. c ...over: This hat cost over £5. ...head: n. 1.头,头部,首。 2.头脑,才能;智力,想像力, ...variable factory over head: 变动间接费用下载手机词典可随时随地查词查翻译