书架 · 听力专辑Hypothetical Situations假设情景B2 中高级 · EnglishJoy Studio · B2EpisodesIf You Had One Extra Hour — 假如多一小时If the Plan Failed — 假如计划失败If You Moved Abroad — 假如移居国外Advice in Hypotheticals — 假设中的建议Using If Naturally — 自然使用假设