英语
德语
I. per·en·nial [pəˈreniəl] 名词
- perennial
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II. per·en·nial [pəˈreniəl] 形 attr, 不变的
1. perennial (not annual):
- perennial
- mehrjährig 技术用语
- perennial
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perennial plant [prˈeniəlˌplɑːnt] 名词
- perennial plant
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PONS词典中的例句（已经编辑处理）
单语范例（未经PONS编辑处理）
A 1989 report on the surrounding neighborhood described the mall has a failure and noted the mall's perennial problem of finding suitable tenants.
en.wikipedia.org A perennial source of water has been found in the form of a lake with perennial water.
en.wikipedia.org This perennial spikerush grows from a tiny rhizome and a small, hard caudex.
en.wikipedia.org This rhizomatous perennial grass produces narrow stems approaching a maximum height of 1.5 meters.
en.wikipedia.org This is because there are too few profitable perennials that can replace crops or that can be adopted at the scale required.
en.wikipedia.org 互联网提供的例句（未经PONS编辑处理）
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www.yo-fruchtsirup.at …balm is a perennial which can be harvested up to three times a year?
[...][...]
…Melisse eine mehrjährige Pflanze ist, die man bis zu dreimal im Jahr sammeln kann?
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