decapitation的复数形式怎么写？

decapitation的音标：decapitation的英式发音音标为：[dɪˌkæpɪ'teɪʃn]decapitation的美式发音音标为：[dɪˌkæpɪ'teɪʃn]...

Far from satiating voters'thirst for blood, the speaker's decapitation may have whetted it.选民的嗜血心态远远未得到满足, 议长的撤换只是进一步刺激了这一渴望.Israel's decapitation of Hamas will further weaken whatever influence Hamas had ...

n.斩首，杀头，断头术，大辟...