1、One way to fix this is to re-introduce Pythagoras to help us.
一種改進辦法是重新引入勾股定理來幫助我們。

2、In Guangzhou, the challenge was to re-introduce bikes to a cityscape that had once welcomed them.
廣州所面臨的挑戰(zhàn)是如何將自行車重新引入到一個本適于其生存的城市體系中的問題。

3、Today, World AIDS day, I want to re-introduce two young women whom you may have met once before.
今天是世界艾滋病日，我要再次介紹你們可能在此之前已見過的兩位年輕婦女。