airhead
n.
"empty-headed person," 1972, from air, n.1 + head, n.. Earlier as a term in mining (mid-19c.) and as a military term based on beachhead(1950).
| 词汇 | airhead | 
| 词根词缀 | Online Etymology Dictionary airhead n. "empty-headed person," 1972, from air, n.1 + head, n.. Earlier as a term in mining (mid-19c.) and as a military term based on beachhead(1950). | 
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