劍橋詞典someone who makes changes to something in order to improve it 改進(jìn)者；改進(jìn)物 home improvers 進(jìn)行家居修繕的人 UK someone who is becoming better at a skill 進(jìn)步者，提高水平者 We run swimming classes for improvers. 我們?yōu)橛斡舅教岣哒唛_設(shè)游泳課程。 UK a substance that is added to something to improve its quality 改良劑 Our bread does not contain preservatives , flour improvers, or other additives . 我們的面包不含防腐劑、面粉改良劑和其他添加劑。 soil improver 土壤改良劑 返回 improver