Nsr
abbr. natural sinus rhythm 自然窦性节律; natural stain remover 自然去污剂; naval staff requirement （英国）海军人员需求; no such receiver 无此收货人
🗣️ 情景例句
Sit down, sit down.
请坐， 请坐。
Did you go to the school last night?
你昨晚去学校了吗？
No, less than that. One and a half teaspoonfuls, please.
不，再少一些。请放一勺儿半。