The average desk height is 29 to 30 inches tall.

大部分桌子的高度为 29 到 30 英吋（75 公分左右）。

Now, who can tell me the common denominator of these two factions?

谁可以告诉我这两个分数的公分母？

He stood eight centimetres short of the standard Alpha height and was slender in proportion.

他的个子比标准阿尔法矮了八公分，身体也相应单薄了许多。

Most Westerners prefer about a foot-and-a-half of personal space around them at all times.

大部分的西人希望可以保持约莫 45 公分距离的私人空间。

Hey, Daddy, what's a lowest common denominator?

老爸 什么是最小公分母[特征人群]啊？

Some of them are no more than five or six centimeters high.

有几本差不多五六公分厚。

Let's go learn our key words with Sonia.

今天要来学习制作书签 首先要准备一张卡纸和各种颜色的色纸 然后是明胶带、剪刀和一把尺 Find some clear tape，scissors and a ruler 名词tape就是胶带 而名词ruler就是尺 把卡纸剪成五公分宽十五公分長的長型卡片 Cut the card stock 5cm wide and 15cm long 形容詞wide 就是寬的 用色紙剪成不同形狀的小圖案贴在卡纸，然后贴胶带覆盖整个书签 在书签一个圆形的小洞 Make a small round hole at the top of your bookmark 形容词round 就是圆的然後拿一節緞帶穿過小孔綁緊。 Put a ribbon through the hole and tie it. 動詞tie就是結。 Oh no！

Was that there is a common denominator in our human experience. Most of us, I tell you, we don't want to be divided. What we want.

那就是 我们的人生阅历中都有一个公分母可以说 多数的人都不想成为分母我们需要的。

Spider-tailed vipers are only about 50 centimeters long, so they can lure small birds within striking range without compromising their ability to squeeze into narrow rock crevices.

蛛尾拟角蝰仅有 50 公分长，它们能在攻击范围内引诱小型鸟且不影响它们躲入狭窄的岩缝中的能力。

1000 years from now, since the ocean floor is spreading at a fast rate, 5 centimeters a year in the mid-Atlantic ridge, in a millennia, it will have spread a whopping 46 meters or 154 feet.

距今 1000 年之后，由于洋底正以每年 5 公分的速度在大西洋中部海脊快速扩张，到一千年后，它将扩展到惊人的 46 公尺或 154 英尺。

If his stride is 23 inches long and he only has ten minutes, how many steps would he have to take per minute to make it on time? It's a doozy, isn't it?

如果他一步是58.4公分，而且只有10分钟的时间，他每分钟需要走多少步才能够准时到达教室呢？是个难题吧？

On the other end of the spectrum, James Madison was the shortest man ever to be President, at 5 feet 4 inches or 163 cm tall.

另一个极端是历任总统中最矮的，詹姆斯·麦迪逊，他约5英尺4英寸高，相当于163公分。

But to anyone who had known him a long time, it was as if he shrank a couple of inches in the years that followed.

但认识他很长时间的人都发现，之后的几年里，他矮了好几公分。

Well, some reports say that due to ill-health, North Koreans are on average two inches, or even three inches shorter than South Koreans.

部分报导指出，由于北韩人健康欠佳，平均身高较南韩人矮 5 至 7 公分。

" Yes, yes, I understand. About three feet by a foot and a half, as they are being made just now" .

" 好，好，我明白，大约九十二公分长，五十公分宽，现在都做这个尺码的。"

He barely looked at the road, yet the tires never deviated so much as a centimeter from the center of the lane.

他很少看路面，轮胎却从未偏离过小路的正中间，一公分也没有偏离过。

The lowest common denominator, for example, is the smallest number that can be divided evenly into a set of fractions.

例如，" 最小公分母（The lowest common denominator）" 是指能被一组分数整除的最小的数字。

When the plants are twenty centimeters high, tie the plants to a stick placed in the pot to support them.

当植株长到20公分高时，在罐子里插一根木棍，将植株和木棍绑在一起以支撑幼苗生长。

That's a centimeter higher than the previous record set in the same venue in 1993 by the Ukrainian Sergey Bubka.

比1993年乌克兰人谢尔盖·布卡创下的纪录高几公分。

To clean it up, we'd need to remove 20 cm of soil and seal it underground in burial sites.

要彻底清除它们，就得挖起20公分深的土壤，然后密封在掩埋区的地底。