Density modfulation
[电] 密度调制
🧩 词语组成解析
🗣️ 情景例句
but they need me at the hospital today,
但今天医院有事，
I wish I were running across an open field.
我真希望在原野奔跑。
It was warm last Sunday, so I went and sat on the river bank as usual.
上星期日天气很暖和。于是我和往常一样，又去河边坐着。