Densogram
密度曲线图
🗣️ 情景例句
Please give my best regards to your sister.
请向你妹妹转达我最诚挚的问候。
The data confirm that this product is safe and effective.
数据证实此种产品安全有效。
In much of China, spring is usually very short.
在中国的许多地方，春天通常很短。