contact relation

例句：

1. 1. They have a contactnumber for emergency services.
   他们有一个紧急服务的联系电话。
2. 2. The company has established a new contactwith the local government.
   该公司已经与当地政府建立了新的联系。
3. 3. The teacher asked the studentsto write down their names and addresses onthe board.
   老师要求学生们在黑板上写下他们的名字和地址。