Dehydrocyclization
脱氢环化(作用)
🗣️ 情景例句
He is a good speaker of English.
他英语说得非常流利。
What sort of guarantees are there against late delivery?
惩罚延迟发货有什么保证呢？
We're planning a tour to Italy this summer.
我们计划今年夏天到意大利去旅行。