拍卖: to auction, auction sale, to sell at a reduced price...
求助: to request help, to appeal (for help)...
哪些: which ones， who, what?...
走近: to approach, to draw near to...
宇航员: astronaut...
幸存: to survive (a disaster)...
特点: characteristic (feature), trait, feature...
公里: kilometer...
均匀: even, well-distributed, homogeneous, well-proportioned (figure, body etc)...
高额: high quota, large amount...
