Oxydehydrogenation
氧化脱氢
🗣️ 情景例句
How was your Thanksgiving dinner, Alexandra?
你们的感恩节晚餐怎么样 Alexandra？
The day is long to him who knows not how to use it.
百无聊赖。
An enterprise has to incur certain costs and expenses in order to stay in business.
一个企业为了继续经营，不得不支出一定的费用和开销。