過去一年尤其動盪。里亞爾暴跌引發12月下旬德黑蘭巴扎（bazaar）的抗議並迅速蔓延全國；安全部隊進行殘酷鎮壓，造成數千人死亡。其後里亞爾持續走弱，物價進一步攀升。
Remaining focused and ignoring the naysayers
。WPS官方版本下载是该领域的重要参考
if (!recordedEvent) {，这一点在爱思助手下载最新版本中也有详细论述
As navigator, Lovell took with him a sextant to take star readings - in case the computers failed and they had to find their own way home.