双重验证订阅机制的英文怎么说

双重验证订阅机制的英文：
Double Opt-in

to double steal
双盗垒

double steering
双转向

The child birthrate in that area has doubled.
该地区的婴儿出生率已经增加了一倍。

double swell hand
二段式指针

What kind of double talk was this?
这是一种什么样的模棱两可的话呢？

He has opted out of the bank.
他已决定自银行辞去工作。

What courses are most students opting for?
多数学生选什么课程？

The scientists will opt for the recursive descendent method.
科学家们会选择递归下降法。

He opted to go to Paris rather than London.
他决定去巴黎，不去伦敦。

To opt out at the critical moment would be quite indefensible.
在关键时刻置身事外的做法是决不不能原谅的。