prep.1橫過，穿過：a bridge across a river橫跨河兩岸的橋2在…的對面：across the street街的對面ad.1橫過，穿過：The footbridge swayed when I ran across.當我跑過天橋時，橋晃個不停。2寬，闊：The river is 50 meters across.河寬50米。...[繼續閱讀]

    vi./vt.1行動，做：Think before you act!三思而后行!/She acts like a born leader.她的舉止象個天生的領導。2起作用：Does the drug take long to act?這藥要很久才能起作用嗎？3表演：Don’t act the fool.不要裝傻。/She plans to act Lady Macbeth in the play.她計劃...[繼續閱讀]

    n.1行動，行動過程：an action film動作片/take action采取行動2(on)作用：the action of sunshine on plants陽光對植物的作用...[繼續閱讀]

    a.1活躍的，敏捷的，積極的：an active member of a club俱樂部的積極參加者2在活動中的：an active volcano活火山...[繼續閱讀]

    n.活動，活躍：social activities社會活動...[繼續閱讀]

    n.男演員：Best Actor最佳男演員...[繼續閱讀]

    n.女演員：Best Actress最佳女演員...[繼續閱讀]

    a.實際的，事實上的，真實的：actual cost實際費用/the actual state現狀【辨析】actual,realactual用于強調所說的地點、人或物是正確的，真實的：His actual name is Daniel.他的實際名字是丹尼爾。actual只用在名詞前作定語，不能作表語，不能說...[繼續閱讀]

    ad.實際上：Actually I knew nothing about it.實際上，我對這事一無所知。...[繼續閱讀]

    vt.1使適應，使適合：He adapted himself to the cold weather.他適應了寒冷的天氣。2改編，改寫：The movie was adapted from a popular novel.這部電影是由流行小說改編的?！径陶Z】adapt to/adapt…to適應：adapt to cold weather適應寒冷天氣/adapt oneself to new...[繼續閱讀]