Ringelmann chart
[医] 林格耳曼氏图(用以检查烟的浓度)
🧩 词语组成解析
🗣️ 情景例句
I don't know how to thank you enought.
我不知道应该如何感谢你。
When did you go painting?
你什么时候去画画？
The weather was very cold, and many people were ill.
天气非常冷，很多人生了病。