perpetual和perennial的区别？

金山带世带是这样说的。希望能帮助你。

perennial
[pE5renjEl]
adj.
四季不断的, 终年的, 长期的, 永久的, (植物)多年生的

perennial
per.en.ni.al
AHD:[p…-rµn“¶-…l]
D.J.[p*6reni8*l]
K.K.[p*6rWni*l]
adj.（形容词）
Lasting or active through the year or through many years.
常绿返轿的：全年或多年都充满生机
Lasting an indefinitely long time; enduring:
持久的：持续很长时间的；持久的：
perennial happiness.
永久的幸福
Appearing again and again; recurrent.See Synonyms at continual
不断出现的；重现的参见 continual
Botany Living three or more years.
【植物学】 多年生的：生蠢芦长三年或三年以上的
n.（名词）
Botany A perennial plant.
【植物学】 多年生植物
Something that recurs or seems to recur on a yearly or continual basis:
长期存在的：长期或持续存在，反复出现的：
“that hardy perennial, the budget deficit”(David S. Broder)
“长期存在的预算赤字”(戴维S.布罗德)

Latin perennis per- [throughout] * see per annus [year] * see at-
拉丁语 perennis per- [通过] *参见 per annus [年] *参见 at-
-al 1
-al1

peren“nially
adv.（副词）

perennial
[pE5renjEl]
adj.
四季不断的, 继续多年的; 长期的, 持久不断的
【动】(牙齿等)不断生长; (昆虫)活一年以上的
【植】多年生的
perennial ice and snow
终年不化的冰雪
perennial youth
青春常驻
a perennial herb
多年生的草
perennial river
四季不枯竭的河流

perennial
[pE5renjEl]
n.
多年生植物

perenniality
n.
perennially
adv.

perennial
per.en.ni.al
AHD:[p…-rµn“¶-…l]
D.J.[p*6reni8*l]
K.K.[p*6rWni*l]
adj.
Lasting or active through the year or through many years.
Lasting an indefinitely long time; enduring:
perennial happiness.
Appearing again and again; recurrent.See Synonyms at continual
Botany Living three or more years.
n.
Botany A perennial plant.
Something that recurs or seems to recur on a yearly or continual basis:
“that hardy perennial, the budget deficit”(David S. Broder)

Latin perennis per- [throughout] * see per annus [year] * see at-
-al 1

perpetual
[pE5petjuEl]
adj.
永久的

perpetual
per.pet.u.al
AHD:[p…r-pµch“›-…l]
D.J.[p*6pet.u8*l]
K.K.[p+6pWt.u*l]
adj.（形容词）
Lasting for eternity.
永远的：永远持续的
Continuing or lasting for an indefinitely long time.
长期的，长久的：继续或保持无限长的时间的
Instituted to be in effect or have tenure for an unlimited duration:
永久有效的：在无限长时间内有效或有使用权的：
a treaty of perpetual friendship.
永久的友好条约
Continuing without interruption.See Synonyms at continual
不间断的：没有中断地连续的参见 continual
Flowering throughout the growing season.
四季开花的：整个生长季节都开花的

Middle English perpetuel
中古英语 perpetuel
from Old French
源自 古法语
from Latin perpetu³s
源自 拉丁语 perpetu³s
from perpetuus [continuous]
源自 perpetuus [连续的]
per- [per-]
per- [前缀，表示“极，完全，彻底”等意]
petere [to go toward] * see pet-
petere [向前走] *参见 pet-

perpet“ually
adv.（副词）

perpetual
[pE5petjuEl]
adj.
永久的, 永恒的, 无穷的; 不断的; 不绝的; (官职等)终身的
(园艺)四季开花的
[口]不停的
a perpetual lease
永久租地权
a perpetual rose
四季开花的蔷薇
a perpetual calender
万年历

perpetual
[pE5petjuEl]
n.
(园艺)四季开花的植物; 多年生草

perpetuality
[7pEpetju5Aliti]
n.
perpetually
adv.
perpetualness
n.

见 continual

perpetual
per.pet.u.al
AHD:[p…r-pµch“›-…l]
D.J.[p*6pet.u8*l]
K.K.[p+6pWt.u*l]
adj.
Lasting for eternity.
Continuing or lasting for an indefinitely long time.
Instituted to be in effect or have tenure for an unlimited duration:
a treaty of perpetual friendship.
Continuing without interruption.See Synonyms at continual
Flowering throughout the growing season.

Middle English perpetuel
from Old French
from Latin perpetu³s
from perpetuus [continuous]
per- [per-]
petere [to go toward] * see pet-