She changed her hairstyle and looked much younger. （她改变了发型，看起来年轻多了。）

We need to change our approach to solve this problem. （我们需要改变方法来解决这个问题。）

The weather has changed suddenly, and it's getting colder. （天气突然变了，越来越冷了。）

He changed his clothes before going out. （他出门前换了衣服。）

You should change your attitude towards study if you want to improve. （如果你想提高成绩，就应该改变学习态度。）

The city has changed a lot since I last visited. （自从我上次来过之后，这座城市变化很大。）

She changed the channel because she didn't like the program. （她换了频道，因为她不喜欢这个节目。）

They decided to change the date of the meeting. （他们决定更改会议日期。）

Change the water in the fish tank regularly to keep the fish healthy. （定期更换鱼缸里的水，以保持鱼的健康。）

He changed his job to get more opportunities for development. （他换了工作以获得更多的发展机会。）

The leaves on the trees change color in autumn. （秋天树上的叶子会变色。）

Can you change this note for me? I need some small change. （你能帮我换开这张钞票吗？我需要一些零钱。）

We have to change the plan due to the unexpected situation. （由于意外情况，我们不得不改变计划。）

She changed her mind at the last minute. （她在最后一刻改变了主意。）

The company is planning to change its logo to attract more customers. （公司计划更换标志以吸引更多客户。）

Change your shoes before entering the house to keep it clean. （进屋前换鞋，保持屋内干净。）

He changed his diet to lose weight. （他改变饮食来减肥。）

The software needs to be changed to fix some bugs. （需要更改软件来修复一些漏洞。）

They changed the topic of conversation when he entered the room. （当他走进房间时，他们改变了谈话话题。）

You can change the settings according to your preferences. （你可以根据自己的喜好更改设置。）