2. This will be the first shuttle mission in nearly a year. 这将是近一年来第一次航天飞机执行发射任务。
3. This will be the fourth spacewalk of the shuttle mission. 这将是本次航天任务的第四次太空行走。
英英解释
n.
1. badminton equipment consisting of a ball of cork or rubber with a crown of feathers
2. public transport that consists of a bus or train or airplane that plies back and forth between two p
3. bobbin that passes the weft thread between the warp threads v.
1. travel back and forth between two points