Instantaneous velocity
[化] 瞬时速度
🧩 词语组成解析
🗣️ 情景例句
Stone is still in the hospital, but he's making good progress.
世通还在医院，但他的身体康复得很快。
The train is comfortable.
坐火车很舒服。
Their parents usually tell them that Father Christmas will come during the night.
他们的父亲通常告诉他们，夜间圣诞老人会来的。