hotbed
n.
1620s, from hot + bed, n.; originally "bed of earth heated by fermenting manure for forcing growing plants;" generalized sense of "place that fosters rapid growth" is from 1768.
| 词汇 | hotbed |
| 词根词缀 | Online Etymology Dictionary hotbed n. 1620s, from hot + bed, n.; originally "bed of earth heated by fermenting manure for forcing growing plants;" generalized sense of "place that fosters rapid growth" is from 1768. |
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