All parties need to explain the background and evidence for their policies.

各党都必须解释其政策背景并提供证据。

youdao

In addition the coach should explain their own background and their goal (s).

除此之外，敏捷教练应该介绍一下自己的背景和目标。

youdao

But iPhone 3.0 will bring push notifications, and Apple was careful to explain why there's no background app-running: battery life.

但是，iPhone 3.0将要提供推送通知，Apple还小心地解释为没有后台程序运行的原因：电力续航。

youdao

The president then introduces Manchin and Toomey to explain their background check legislation.

CNN: Senate to start votes on gun bill

All parties need to explain the background and evidence for their policies.

ECONOMIST: Bagehot

He went on to explain the background to his thinking about the current situation in an essay in The Atlantic, Why There Are Too Many Patents In America.

FORBES: The Big Fix #3: How To Untangle The Mess With Software Patents