/ˈmænɪfəʊld ||; ˈmænəˌfold/adj (formal 正式) many; of many different types 许多的；多种多样的
manifold²
/ˈmænɪfəʊld ||; ˈmænəˌfold/noun [C] (technical术语) a pipe or an enclosed space with several openings for taking gases in and out of a car engine （汽车发动机进气和排气的）多支管，集气管