But earlier,Buzz Aldrin the second man to walk on the moon took part in a NASA news conference where he pushed for a new round of space exploration, with the goal of sending astronauts to Mars.

VOA: standard.2009.07.20

take a little walk down round Portobello Road.

绕着这条大街散步。

《诺丁山》拍摄地点 - SpeakingMax英语口语达人