1) I want to go there and back on the same day.
我要当天往返。
2) I would like a return ticket.
我想要张往返票。
3) It takes four hours to go there and back.
往返要四个小时。
4) One-way or round trip?
要单程还是往返?
5) fully reusable launch vehicle (RLV)
天地往返运输器
6) launch vehicle
天地往返运载器
1.
Study on dynamic system scheme of launch vehicle based on RBCC;
基于RBCC的天地往返运载器动力方案研究
补充资料:往返
①来回;来去:徒劳往返|往返十多里路|樵风往返吹。②来往;交往:书信往返|应酬往返。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条