round-trip ticket 英 [ˈraundˈtrip ˈtikit] 往返票
双语例句：
Could you please tell me how much is a round-trip ticket to Los Angeles?
请你告诉我到洛杉矶的来回程机票要多少钱？
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round-trip ticket 英 [ˈraundˈtrip ˈtikit] 往返票
双语例句：
Could you please tell me how much is a round-trip ticket to Los Angeles?
请你告诉我到洛杉矶的来回程机票要多少钱？