亚洲免费乱码视频,日韩 欧美 国产 动漫 一区,97在线观看免费视频播国产,中文字幕亚洲图片

      1. <legend id="ppnor"></legend>

      2. 
        
        <sup id="ppnor"><input id="ppnor"></input></sup>
        <s id="ppnor"></s>

        托福語(yǔ)法:托??荚嚦?济~

        字號(hào):

        1. 不可數(shù)名詞:
            Furniture luggage clothing equipment poetry jewelry
            machinery weaponry scenery information knowledge evidence
            foliage health advertising
            2.學(xué)科名詞(不可數(shù),不加冠詞):
            mathematics economics statistics physics politics mechanics
            genetics geology geography chemistry philosophy biology
            history astronomy
            3. 單復(fù)數(shù)特殊名詞:
            man/men woman/women tooth/teeth foot/feet goose/geese
            basis/bases analysis/analyses crisis/crises hypothesis/hypotheses
            axis/axes alga/algae larva/larvae fungus/fungi stimulus/stimuli
            datum/data bacterium/bacteria medium/media spectrum/spectra
            mouse/mice child/children phenomenon/phenomena
            4.單復(fù)數(shù)同行 :
            aircraft spacecraft series species means sheep deer fish
            salmon trout carp starfish jellyfish shellfish walrus
            5. 可跟that同位從句:
            observation, fact, belief, discovery, doubt, statement, conclusion, decision idea,
            evidence, hope, news, opinion, thought, rumor, explanation, truth