单词	without a solution
释义	请查阅词条：solution
随便看	self-directing self-direction social Darwinist social Darwinist social democracies social democracy social democrat social-democrat social democrat social democratic social democratic Social Democratic and Labour Party Social Democratic Party social deprivation social dialect social dialectologist social dialectology social differentiation social disease social disorganization social distance social distance scale social division social document disutility 盲点盲目盲肠盲肠炎盲蛇盲道盲降直直书直供 Kettenschmiere Kettenschutz Kettenspanner Kettenspannerbolzen Kettenspanner_Verstellung Kettenspannfeder Kettenspanngehäuse Kettenspannmutter Kettenspannrad Kettenspannrolle