評(píng)論
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permutation
n.排列；置換
Permutation is an ordered arrangement of the elements of a set.
排列是指集合元素的有序排序方式。
quadrant
n.象限；四分儀
quotient
n.商
A quotient is the number obtained by dividing one quantity by another.
商是通過(guò)將一個(gè)數(shù)除以另一個(gè)數(shù)得到的數(shù)字。
fraction
n.分?jǐn)?shù)
decimal
adj.十進(jìn)制的 n.小數(shù)
The metric system is a decimal system.
公制是一個(gè)十進(jìn)制系統(tǒng)。
diameter
n.直徑
ellipse
n.橢圓，橢圓形
radius
n.半徑
A line segment that joins the center of a circle with any point on its circumference is a radius.
半徑是指連接圓心和圓周上任意一點(diǎn)的線段。
vertical
adj.垂直的(perpendicular, upright)
Vertical communication happens between subordinates and superiors.
發(fā)生在上下級(jí)間的縱向溝通。
deduction
n.減
statistics
n.統(tǒng)計(jì)學(xué)；統(tǒng)計(jì)表
even
adj.偶數(shù)的
2,4,6,8 etc. are even numbers.
2,4,6,8等是偶數(shù)
odd
adj.奇數(shù)的，單數(shù)的
1,3,5,7 etc. are odd numbers.
1,3,5,7等是奇數(shù)。
