modus operandi
n.
"way of doing or accomplishing," 1650s, Latin, literally "mode of operating" (see modus). Abbreviation m.o. is attested from 1955.
| 词汇 | modus operandi | 
| 词根词缀 | Online Etymology Dictionary modus operandi n. "way of doing or accomplishing," 1650s, Latin, literally "mode of operating" (see modus). Abbreviation m.o. is attested from 1955. | 
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