Electrocardiosignal
心电信号
🗣️ 情景例句
Before the barbeque let's sharpen all the knives.
烧烤之前先把刀磨一磨。
When a dog is drowning everyone offers him drink.
落井下石。
Oh! She's falling off her bike. I hope she didn't hurt herself.
噢！她正从自己的自行车上跌落下来。我希望她没有摔伤。