這是壹個非常好的問題！
這句話出自2020年12月四級考試長篇閱讀C段首句。這篇文章是討論收入不平等的。要正確理解faces的意思，要結合整個段落來理解（段落附在此次回答的最後）。
1) 首先壹個比較好回答的問題是look like是壹個動詞短語，這個短語做整個句子的謂語。因為句子的主語是faces，所有謂語動詞用原型。all of us做句子的賓語。整個句子是主謂賓結構。
2）face除了有“臉”這層意思之外，還有“表情”、“人”和“特征”的意思，下圖是摘自牛津字典的解釋：
這句話的後面列舉了5個收入低且沒有機會的人——Anna Landre，Tiffanie Standard，Sharon Penner，Charles Oldstein和Ken Outlaw，講述了他們的困難。所有faces在這裏是“人”的意思。這句話翻譯為：“今天低收入（收入不平等）和缺乏機會的人像我們中的每壹個人。”這句話做為段落首句充當著段落主題句作用，後面的列舉都是為了證明它。
PS：詞本無意，意由境生。要知道壹個詞確切的意思，需要根據周圍的語境來做出判斷。這是大學英語的重要考點。
祝妳學習順利。
段落摘抄如下：
[C] Today's faces of income inequality and lack of opportunity look like all of us. It's Anna Landre, a disabled Georgetown University student fighting to keep health benefits that allow her the freedom to live her life. It's Tiffanie Standard, a mentor for young women of color in Philadelphia who want to be tech entrepreneurs – but who must work multiple jobs to stay afloat. It's Sharon Penner, an artisan in rural Georgia, who worries about retirement security and health care options for senior gay women. It's Charles Oldstein, a U.S. Air Force veteran in New Orleans who would still be on the street if the city hadn't landed a zero tolerance policy for homeless among veterans. It's Ken Outlaw, a welder in rural North Carolina whose dream of going back to school at a local community college was dashed by Hurricane Florence –just one of the extreme weather events that have tipped the balance for struggling Americans across the nation.