You should look up the new words in the dictionary when you don't know their meanings.（当你不知道新单词的意思时，你应该在字典里查找它们。）

She looked up at the stars in the sky, lost in thought.（她抬头仰望天空中的星星，陷入沉思。）

I will look up his phone number and call him later.（我会查找他的电话号码，然后给他打电话。）

Look up the information about this book on the Internet before you buy it.（在你买这本书之前，在网上查找关于它的信息。）

He looked up from his book when he heard the noise.（当他听到噪音时，他从书本上抬起头来。）

They often look up historical events to understand the past better.（他们经常查阅历史事件以便更好地了解过去。）

Please look up the train schedule for tomorrow.（请查找一下明天的火车时刻表。）

The child looked up at his mother with big, innocent eyes.（孩子用一双天真的大眼睛抬头看着他的妈妈。）

We need to look up some references for our research project.（我们需要为我们的研究项目查找一些参考文献。）

Look up the recipe for this dish online; it might be very delicious.（在网上查找这道菜的食谱，它可能非常美味。）

She always looks up fashion trends to keep herself stylish.（她总是关注时尚潮流以保持自己的时尚感。）

He looked up the address of the new store and decided to go there.（他查找了那家新店的地址，然后决定去那里。）

Look up the meaning of this idiom; it's quite interesting.（查找这个习语的意思，它很有趣。）

They looked up at the tall building in amazement.（他们惊讶地抬头看着那座高楼。）

I have to look up the details of this meeting in my notebook.（我得在笔记本里查找这次会议的细节。）

Look up the map to find out where we are.（查看地图以弄清楚我们在哪里。）

The students were told to look up relevant materials for their essays.（学生们被告知为他们的论文查找相关资料。）

She looked up the price of the dress before making a decision.（在做决定之前，她查询了这条裙子的价格。）

He looked up at the ceiling, trying to think of a solution.（他抬头看着天花板，试图想出一个解决方案。）

Look up the opening hours of the museum so we can plan our visit.（查找博物馆的开放时间，这样我们就可以计划我们的参观行程。）