Pentahydrate
n. [化]五水合物
🗣️ 情景例句
What was the weather like?
那边天气怎么样？
I feel terrible about it.
太对不起了。
In the evenings he studied hard for his exams, and most mornings he took tourists around Oxford.
他晚间努力学习，以应付考试，而大多数早上，他则带领游客在牛津大学参观。