Wah how to link sentences with While.

1. We can use while to join two related sentences.

• Panda live in China, while the Koala live in Australia.
• The meat of snake was used for food, while the skin were used to make boots.
• I find new customers, while Mary manages the store.
• Jason has got promoted to a Manager, while his wife has become a CEO. 

2. We can also use while for contrasting sentences.

• Many people like John, while some doesn't like him.
• Many people believe there is no one live in the desert, while the reality is quite different.
• While in summer the weather is very hot, in the winter it is very cold.
• While I like all types of fish, my girlfriend always chooses meat dishes when we go out to eat.

A lot of people prefer traveling by plane, while others choose the train.