15. This "added-worker effect" could support the safety net offered by unemployment insurance or disability insurance to help families weather bad times.

【分析】簡單句。句子主干為This “added-worker effect” could support the safety net。過去分詞結構 offered by...disability insurance作后置定語;不定式結構to help…作目的狀語。
【譯文】這種“附加勞動力效應”可以加強由失業保險和傷殘保險所提供的社會保障體系，以幫助家庭渡過難關。

【點撥】注意句中的幾個表達：safety net指“社會保障體系”，unemployment insurance指“失業保險”，disability insurance指“傷殘保險”。

16. Steelworkers, airline employees, and now those in the auto-industry are joining millions of families who must worry about interest rates, stock market fluctuation, and the harsh reality that they may outlive their retire-ment money.

【分析】復合句。主句主干為：Steelworkers, airline employees, and now those...are joining millions of families。Who引導的定語從句修飾families;在該從句中，名詞短語 interest rates, stock market fluctuation 及 the harsh reality構成并列平行結構，共同作worry about的賓語。 句末that引導的從句作reality的同位語。
【譯文】鋼鐵工人、航空公司雇員以及現在的汽車業職員正在加入那些擔心利率、股市波動和退休金不夠用的數百萬家庭的行列。