Let me call the Emergency Center.

我来拨打急救中心的电话。

Is the Emergency Center open now?

急救中心现在还开着吗？

Is the Emergency Center open now?

急救中心现在还上班吗？

My friend has a bad stomachache. Let me call the Emergency Center.

我的朋友胃疼得厉害。我来拨打急救中心的电话。

Operator: Hello, this is the Zhuhai Emergency Center, may I help you?

调度员：你好，珠海市急救中心，请问需要帮助吗？