curtain call的复数形式怎么写？

The cast stood in line for the curtain call.演员们站成一排谢幕.Do not just sit on your hand when actors make curtain call.演员谢幕时不要坐着不鼓掌.In this way, this really is the final curtain call has been.就这样, 这次真的是最后的谢幕了....

curtain call的音标：curtain call的英式发音音标为：['kə:tn kɔ:l]curtain call的美式发音音标为：['kɚtn kɔl]...

n.谢幕，要求演员谢幕的掌声和呼声...