- 问题详情:Travellingcanbefunandeasy.Avacationtriptoanothercountryisespecially__1_whenthetravellingconditionsaregood.Goodtravellingconditions_2_acomfortablewayoftransportation,knowledgeofthecountry’s___3__,familiarity__4_thecustomandhabitsofthepeoplein...
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