sediment-covered

a.沉淀物覆盖的

secular, secularism, secularist, secularize, secularise, secure, securely, securities, security, security guard, security risk, sedan, sedate, sedately, sedateness, sedation, sedative, sedentary, sedge, sedgy, sediment, sedimentary, sedimentation, sedition, seditious, seditiously, seduce, seducer, seduction, seductive, seductively, seductiveness, sedulity, sedulous, sedulously, see, see (to it) that, see about, see about sth., see after, see eye to eye,