Methylphenanthrene
甲菲
🗣️ 情景例句
Miss Chen is not in right now. She went shopping.
陈小姐现在不在，她去买东西了。
This knife is dirty.Would you bring me a clean one,please?
这把刀子是脏的.请你给我干净的一个,好吗？
How do you like our English literature Prof.?
你觉得我们的英国文学课的教授怎么样？