substance

n.物质；实质，本质；要义，主要部分

subsequent, subsequent to, subsequently, subservience, subservient, subserviently, subside, subsidence, subsidiary, subsidization, subsidization, subsidisation, subsidize, subsidize, subsidise, subsidy, subsist, subsistence, subsistence crop, subsistence level, subsoil, subsonic, substandard, substantial, substantially, substantiate, substantiation, substantive, substantively, substation, substitute, substitute for, substitute...for, substitution, substratum, substructure, subsume, subtenancy, subtenant, subtend, subterfuge, subterranean,