errand

n.差使，差事

ere, erect, erectile, erection, erectness, erector, erg, ergo, ergonomics, ermine, erode, eroded, erogenous, erosion, erosive, erotic, erotica, erotically, eroticism, err, errant, erratic, erratically, erratum, erroneous, erroneously, error, ersatz, erudite, eruditely, erudition, erupt, eruption, Erving Goffman, erysipelas, ESA, escalate, escalation, escalator, escalope,