wait for half a minute 等待半分钟
take half a minute 花费半分钟
last half a minute 持续半分钟
in half a minute 在半分钟内
1. Please wait half a minute, the teacher is just finishing up.
请等半分钟，老师马上就讲完了。
2. It only takes half a minute to heat up the water.
把水烧热只需要半分钟。
3. I checked the time, and we had only waited half a minute.
我看了下时间，我们其实只等了半分钟。
A: Are you ready? We need to leave now.
A：你准备好了吗？我们需要现在出发。
B: Just a moment, give me half a minute to pack my bag.
B：等一下，给我半分钟打包一下我的包。
1) 时间单位：等于30秒。
2) 口语表达：常用于催促或表示短暂等待。
3) 修辞用法：有时夸张地表示“很快”或“极短时间”。
1. 半分钟（三十秒）
e.g.
Hold your tongue for half a minute and listen to me.
闭嘴半分钟，听我说。
noun phrase
1. A period of thirty seconds.
Synonym: thirty seconds, half-minute