microsecond的复数形式怎么拼写？

microsecond的音标：microsecond的英式发音音标为：['maɪkrəʊsekənd]microsecond的美式发音音标为：['maɪkroʊsekənd]...

How did that microsecond in vietnam change his life?在越南那一微秒怎样改变了他的人生?Hey , I wasn't worried for a microsecond.我连一微秒都没害怕过.--------...

n.一百万分之一秒，微秒...