I don't know this word. I need to look it up in the dictionary.（我不知道这个单词。

我需要在字典里查一下它。）

She looked up the phone number of the restaurant before going there.（她在去那家餐厅之前查找了它的电话号码。）

If you have any questions about history, you can look up relevant information online.（如果你对历史有任何疑问，你可以在网上查找相关信息。）

The students were told to look up some famous poets for their literature project.（学生们被告知为他们的文学项目查找一些著名诗人的资料。）

He looked up the train schedule to see when he could leave.（他查找火车时刻表看看他什么时候可以出发。）

Whenever I forget a grammar rule, I look it up in my grammar book.（每当我忘记一条语法规则时，我就在我的语法书中查找它。）

They looked up the address of the new store on the map.（他们在地图上查找那家新商店的地址。）

Look up the meaning of this idiom. It's quite interesting.（查一下这个习语的意思。

它很有趣。）

My father often looks up old friends on social media.（我父亲经常在社交媒体上查找老朋友。）

We should look up more details about this event to understand it better.（我们应该查找关于这个事件的更多细节以便更好地理解它。）

She looked up at the stars and felt a sense of peace.（她抬头仰望星星，感到一种宁静。）

The little boy looked up at his mother with big, innocent eyes.（小男孩用大大的、天真的眼睛抬头看着他的妈妈。）

Look up! There's a beautiful bird in the tree.（抬头看！树上有一只漂亮的鸟。）

He looked up from his book when I entered the room.（当我走进房间时，他从书本上抬起头来。）

They all looked up as the plane flew overhead.（当飞机从头顶飞过时，他们都抬起头来。）

She was so absorbed in her work that she didn't look up when I called her.（她全神贯注于工作，我叫她时她都没有抬头。）

Look up the recipe for this dish. I want to try making it.（查找这道菜的食谱。

我想试着做一下。）

He always looks up new words while reading English novels.（他读英语小说时总是查找新单词。）

We need to look up the latest research findings for our report.（我们需要为我们的报告查找最新的研究成果。）

Look up the opening hours of the museum before we go.（在我们去之前查找一下博物馆的开放时间。）