assistant of a skilled workman的: 4次方是 The fourth power of 2 i ...助手: helper; aide; assistant铅管工的助手: a plumber's mate照明工的助手: best boy; best person熟练工: all-round worker; journeyman; skilled labor; skilled labour（grade/grade3）下载手机词典可随时随地查词查翻译
