It is estimated that a round-tripflight to Mars would take more than a year and a half.
据估计飞到火星来回的时间要超过一年半。
2
And, like pretty much all these "gurus", he demands a first-class round-tripflight ticket to boot.
像所有的专家,他需要预订一流的往返机票。
3
A round-tripflight from New York cost Frommer $350, "decent hotels" charged as little as $35 a night, and a meal at a sit-down restaurant might set you back just $3, she said.