Most of the projects I've built have used Python as a back-end to Flex.

我所完成的大多数项目都是使用Python作为Flex后端的。

youdao

The left edge of the screen is used as a back button, it is usually used to return to the previous application.

屏幕左侧边缘成了后退按钮，一般用于返回上一个应用程序。

youdao

Rescuers said they would resume drilling a separate shaft as a back-up plan in case of problems with the first one.

救援人员称，作为备用他们将会重新开钻另一口竖井，以防第一口竖井出现问题。

youdao

Last year his wife returned to school to study nursing as a back-up to his salary.

VOA: standard.2010.07.29

As every time we introduce a new programming concept, we'll relate it back, as we have been doing consistently, to defensive programming.

我们每次介绍一个,新的编程概念的时候，就会和以前讲的联系起来，就和我们介绍防卫性程序设计一样。

麻省理工公开课 - 计算机科学及编程导论课程节选

So for example I defined p, remember back over here, as a Cartesian point, but I can actually ask for its polar form.

我可以要求返回它的极坐标形式，这里对我是可访问的，好，这很棒，请再记另外一个为什么。

麻省理工公开课 - 计算机科学及编程导论课程节选

Rajoana was convicted of acting as a back-up suicide bomber should Singh have failed.

BBC: Sikhs protest in London over India death penalty

The union sees this as a back door for patronage, nepotism and even more affirmative action.

ECONOMIST: Fire services

So the fuel cell can be used to act almost as a back up generator.

FORBES: Apple Wrongfoots Greenpeace over Renewable Power for the iCloud