half a minute

相關對話：

1. The next contestant surprised me. She made139 jumps in half a minute.
   下一個參加比賽的人使我吃驚，她在半分鐘之中跳了139下(指跳繩)。
2. I'll be ready in half a minute.
   我馬上就準備好。
3. It's exasperating to run for a train and then miss it by half a minute.
   跑著趕火車，卻差半分鐘沒趕上，真氣人。