单词 sustenant 释义 sustenant, pres. pple. and a. rare.|sstnnt|[In A., a. OF. sustenant, pr. pple. of sustenir to sustain; in B., f. sustenance: see -ant.]†A. pres. pple. Supporting, encouraging. Obs.c1386Chaucer Pars. T. ⁋366 (MS. Egerton 2726) Susten...