在卧室里有张大床可以用英语表达为 "There is a large bed in the bedroom."
其中, "there" 是一个空间状语，表示“在那里”， "is" 是助动词，表示“有”， "a" 是冠词，表示“一个”， "large bed" 是名词短语，表示“大床”， "in" 是介词，表示“在”， "the bedroom" 是名词短语，表示“卧室”。
例句：
"I'm going to bed early tonight, my bedroom has a large bed." (我今晚早点上床，我的卧室里有张大床。)
"I love the large bed in the master bedroom, it's so comfortable to sleep on." (我喜欢主卧室里的大床，睡起来非常舒服。)
"The hotel room was spacious and had a large bed, perfect for a good night's sleep." (酒店房间很宽敞，有张大床，非常适合睡个好觉。)