填空题 The journey usually takes six weeks but you should 1 delays caused by bad weather.
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【正确答案】 1、allow for    
【答案解析】解析： The journey usually takes six weeks but you should allow for(考虑到)delays(延迟) caused(引起) by bad weather. 这次旅行通常需要6个星期，但你应该允许恶劣天气造成的延误