The Double Up的意思|示意

It followed them, flapping double time, until it caught up, until it joined the last end of the elegant line.

它紧跟着天鹅，加倍抖动着双翅，终于赶上它们并变为了那条优美线条最后的一个点。

Another big unknown is precisely how the lizards end up with double the amount of chromosomes in the first place.

另一个大谜团是这些蜥蜴到底是如何分解最初加倍的染色体的呢？

But most of the time we need to learn how to set up double integrals.

但在大多数情况下，我们需要了解怎样建立二重积分。

The payroll survey can easily double-count someone: if you are one person with two jobs, you show up as two workers.

工资调查很容易把一个人重复计算进去：如果你是一个人同时做两份工作，你就会以两名员工的身份出现。

But investors should be wary of assuming the best case and scooping up the bonds of these companies, despite their double-digit yields.

但是投资者应当谨防只考虑到最好的情况就抄底这些公司的股价，尽管它们的收益率是两位数。

The people who were slowest to get up from a chair had about double the mortality rate compared to the quick risers.

那些从椅子上站起来耗时最长的人和很快就能从椅子上站起来的人相比，死亡率几乎翻了一倍。