span是什么意思_span怎么读_音标spæn

span是什么意思

音标:英 [spæn]美 [spæn]

指距, 全长, 跨距, 一段时间, 小范围vt. 以手指测量, 跨越, 架设, 持续

the complete duration of something
the distance or interval between two points
a unit of length based on the width of the expanded human hand (usually taken as 9 inches)

span的用法和例句：

1. It turns out that we have a life span because our cells have a life span, and each different type of cell has a different life span.

事实证明 人类寿命是有限的 因为细胞寿命是有限的 而且不同细胞的寿命长短也不同

2. But not all animals have the same life span.

但并非所有动物都有相同的寿命

3. It it all happened in the same twoweek span.

问题都出现在两周的时间跨度内

4. He has the attention span of a sparrow.

注意力持续时间比麻雀还短

5. Or, uh, your attention spans, more specifically.

更确切地说 是你们的注意力

6. That sure is, and that's within a twoweek span.

没错 而且还是在两周之内

7. He isn't complicated, really doesn't have the attention span.

他心思不复杂 没这个耐心

8. In the span of your whole lifetime, it's a second.

在你整個一生中 那只是一秒

9. His attention span is so freaking short.

他注意力能集中的时间太 的短了

10. It's too wide a span to repair with a graft.

跨度太大 难以用移植修复