Sv
[计] 单值, 状态有效
🗣️ 情景例句
Thanks. Excuse me.
谢谢。失陪一下。
A watched pot(pan) is long in boiling.
心急水不沸；盼得越切，来得越迟。
the mind catches hold of something and will not let it go.'
此时脑子纠缠住了某种东西又不肯松手。"