半分钟后

have half a mind to───有点想

half-minute───半分钟

wait a minute───等一下；等一会

to have a mind to───有决心

half-minutes───半分钟

with half a heart───半颗心

for a/one minute───一分钟

next contestant surprised me. She made139 jumps in half a minute.───下一个参加比赛的人使我吃惊，她在半分钟之中跳了139下（指跳绳）。

He made 135 jumps in half a minute.───他在半分钟内跳了135下。

Hang on. I'll be ready in half a minute.───一下。我马上就准备好了。

The researcher would then leave the room with the broken toy and return in half a minute with an intact replica of it.───研究者们随后带着破损的玩具离开了房间，半分钟后拿着完好无损的复制品回到了房间。

The next contestant surprised me. She made 139 jumps in half a minute.

Hang on. I'll be ready in half a minute.

I'll be ready in half a minute.

The girl made 135 jumps in half a minute.