calls

例句：

1. 1. I need to make a phone call to my mom.
   我需要给我妈打个电话。
2. 2. The police are investigating the calls that came in last night.
   警方正在调查昨晚收到的电话。
3. 3. She called me from her new phone number.
   她用她的新电话号码给我打电话。