contact starting

例句：

1. 1. We need to contact the company to discuss our next steps.
   我们需要联系公司讨论下一步行动。
2. 2. The teacher contacted the students about their homework assignments.
   老师联系了学生关于他们的家庭作业。
3. 3. She contacted the police to report the suspicious activity.
   她联系了警方报告可疑活动。