五、词根 -cern,crim,-cert,-cris,-crit,-cree,-cret 均示意“separate/distinguish:区别;离别;单独” concern [kənˈsɜ:n] vt. 触及麻仓优作品,关系到;使记念 718 搭配: be concerned about/with (考):对……很关爱 例句: There is considerable and justified concern that the United States is falling behin...
2024-09-21