常見(jiàn)例句

• Dr. Len Lichtenfeld is deputy chief medical officer for the American Cancer Society. You can iew the full blog by clicking here.
  L是美國(guó)癌癥協(xié)會(huì)的首蓆執(zhí)行官，你能點(diǎn)擊這裡瀏覽整個(gè)博客。
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