late 14c., "standing on the hind legs" (as a heraldic lion often does), thus, also, "fierce, ravenous" (late 14c.), from Old French rampant, present participle of ramper "to climb, scale, mount" (see rampage (v.)). Sense of "growing without check" (in running rampant), first recorded 1610s, probably is via the notion of "fierce disposition" or else preserves the older French sense.
雙語例句
1. Unemployment is now rampant in most of Europe.
在歐洲的大部分地區，失業問題難以控制。
來自《權威詞典》
2. Sickness was rampant in the rural areas of this country.
這個國家的農村地區疾病流行.
來自《簡明英漢詞典》
3. That area is full of rampant lawlessness.
那個地區充斥著犯罪事件.
來自《簡明英漢詞典》
4. Malaria is still rampant in some swampy regions.
瘧疾在一些沼澤地區仍很猖獗.
來自《現代漢英綜合大詞典》
5. The country is an economic basket case with chronic unemployment and rampant crime.