Big retailers must understand these differences before they can identify the segments of European wholesaling in which their particular abilities might unseat smaller but entrenched competitors.
    【分析】多重復(fù)合句。句子主干為 Big retailers must understand these differences。before 引導(dǎo)時(shí)間狀語從句，其中又包含 which 引導(dǎo)的定語從句修飾 the segments of European wholesaling。
    【譯文】大型零售商必須了解這些差異，之后才能夠識別歐洲的批發(fā)行業(yè)，它們獨(dú)特的能力也許會在這一行業(yè)中打敗規(guī)模較小但牢固占有市場的競爭對手。
    【點(diǎn)撥】1) unseat“使墜馬;革除(職位);使失去資格”，本句中是“打敗，使失去地位”的意思。2)entrenched 本句中意為“固守的，牢固占有市場的”。