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.
双语例句
1. Unemployment is now rampant in most of Europe.
在欧洲的大部分地区，失业问题难以控制。
来自《权威词典》
2. Sickness was rampant in the rural areas of this country.
这个国家的农村地区疾病流行.
来自《简明英汉词典》
3. That area is full of rampant lawlessness.
那个地区充斥着犯罪事件.
来自《简明英汉词典》
4. Malaria is still rampant in some swampy regions.
疟疾在一些沼泽地区仍很猖獗.
来自《现代汉英综合大词典》
5. The country is an economic basket case with chronic unemployment and rampant crime.
