R-t segment
[医] R(S)-T节段(心电图)
🧩 词语组成解析
🗣️ 情景例句
It won't sound like a big deal,
这事听起来没啥严重，
When the light went out, I was cleaning the yard.
当熄灯的时候，我在清理庭院。
You mustn't come home late.You must be home at half past ten.
你不准回家太晚，你必须在10点半到家。