A collision of worlds when two African-American families from divergent socioeconomic backgrounds get together one weekend in Martha's Vineyard for a wedding.完(wán )成了所(🛒)有(yǒu )研究(🤙)任(rèn )务(🚤)，任务系统中没有更新新(xīn )的任务，但任务链也同样还存在。