Dalembert equation
[化] 达朗贝尔方程
🧩 词语组成解析
🗣️ 情景例句
about taking care of babies, I assure you.
如何照顾小孩， 我向你保证。
The doctor said I looked run down.
医生说我看起来身体渐渐差了。
In Maori history,the first traveller to reach New Zealand in the year 950 was a man called Kupe.
毛利人的历史上，于950年第一个到达新西兰的旅行者是一个名叫库佩的人。