briefing
n.
"fact or situation of giving preliminary instructions," 1910 (but popularized by World War II pre-flight conferences), verbal noun from brief, v..
| 词汇 | briefing | 
| 词根词缀 | Online Etymology Dictionary briefing n. "fact or situation of giving preliminary instructions," 1910 (but popularized by World War II pre-flight conferences), verbal noun from brief, v.. | 
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