instructor
n.
mid-15c., from Old French instructeur and directly from Medieval Latin instructor "teacher" (in classical Latin, "preparer"), agent noun from instruere (see instruct).
| 词汇 | instructor | 
| 词根词缀 | Online Etymology Dictionary instructor n. mid-15c., from Old French instructeur and directly from Medieval Latin instructor "teacher" (in classical Latin, "preparer"), agent noun from instruere (see instruct). | 
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