threshold
1 門檻；門口
the floor or ground at the bottom of a doorway , considered as the entrance to a building or room
She stood hesitating on the threshold.
她站在門口，猶豫不決。
He stepped across the threshold.
他邁過門檻。
2
閾；界；起始點
the level at which sth starts to happen or have an effect
He has a low boredom threshold (= he gets bored easily) .
他極易感到乏味。
I have a high pain threshold (= I can suffer a lot of pain before I start to react) .
我的痛閾很高。
My earnings are just above the tax threshold (= more than the amount at which you start paying tax) .
我的收入剛剛超過徵稅起點。
3
[usually sing.] 開端；起點；入門
the point just before a new situation, period of life, etc. begins
She felt as though she was on the threshold of a new life.
她覺得好像就要開始新生活了。
correlation
noun
[C, U] ~ (between A and B) | ~ (of A with B)
相互關係；相關；關聯
a connection between two things in which one thing changes as the other does
There is a direct correlation between exposure to sun and skin cancer.
皮膚暴露在太陽下與皮膚癌直接相關。
the correlation of social power with wealth
社會權力與財富的相關性
manifold
adj.
(formal) 多的；多種多樣的；許多種類的
many; of many different types
The possibilities were manifold.
有很多的可能性。
dimensions
1 維（構成空間的因素）；尺寸
a measurement in space, for example the height, width or length of sth
We measured the dimensions of the kitchen.
我們測量了廚房的大小。
computer design tools that work in three dimensions
計算機三維設計工具
see also fourth dimension
2
[usually pl.] 規模；程度；範圍
the size and extent of a situation
a problem of considerable dimensions
一個涉及面相當廣的問題
3
方面；側面
an aspect, or way of looking at or thinking about sth
Her job added a new dimension to her life.
她的工作為她的生活增添了新的內容。
the social dimension of unemployment
失業的社會性層面
variation
1
[C, U] ~ (in/of sth)
（數量、水平等的）變化，變更，變異
a change, especially in the amount or level of sth
The dial records very slight variations in pressure.
該刻度盤能顯示很微小的壓力變化。
Currency exchange rates are always subject to variation.
貨幣的兌換率始終波動。
regional/seasonal variation (= depending on the region or time of year)
地區性 / 季節性變化
2
[C] ~ (on sth)
變異的東西；變種；變體
a thing that is different from other things in the same general group
This soup is a spicy variation on a traditional favourite.
這種湯是在一種受歡迎的傳統湯羹中加了香料。
3
[C] ~ (on sth)
(music 音) 變奏；變奏曲
any of a set of short pieces of music based on a simple tune repeated in a different and more complicated form
a set of variations on a theme by Mozart
以莫扎特某一樂曲為主題的一組變奏曲
(figurative) His numerous complaints are all variations on a theme (= all about the same thing) .
他的滿腹牢騷說來道去都是為了一件事。
同類型句式翻譯練習
It was possible to demonstrate by other methods refined structural differences among neuron types ; however , proof was lacking that the quality of the impulse or its condition was influenced by these differences , which seemed instead to influence the developmental patterning of the neural circuits .
有可能通過其他方法來證明神經元種類間的細微的結構差異；可是，這樣的證據是缺乏的，即神經衝動的性質或者狀態是受這些差異所影響的，而這些差異看起來卻能影響神經網絡的發育模式。
Although qualitative variance among nerve energies was never rigidly disproved，the doctrine was generally abandoned in favor of the opposing view，namely，that nerve impulses are essentially homogeneous in quality and are transmitted as "common currency" throughout the nervous system.
儘管在神經能量上存在著質的不同，這一點從來都沒有在嚴格的意義上被反對過，但是以上教條通常被拋棄掉，而轉向相反的觀點，即：神經衝動從根本上本質相同，而且被當作"一種普通流"在整個神經系統中傳播。
Other experiments revealed slight variations in the size，number， arrangement，and interconnection of the nerve cells，but as far as psycho neural correlations were concerned，the obvious similarities of these sensory fields to each other seemed much more remarkable than any of the minute differences.
儘管其他實驗顯示在神經細胞的大小、數量、排列和相互連接上有一些小的差異，但是就心理-神經的關係而言，這些感官區域彼此之間的明顯的相似性看起來比起微小的差異更為令人注目。