Pecvd
等离子[体]增强CVD
🗣️ 情景例句
This is my friend Harry Bennett.
这是我的朋友Harry Bennett。
We pitied the family in their sudden unhappiness.
那家人遭受突然的不幸，我们深感同情。
I will continue my learning, though I am tired of learning English.
尽管我很烦英语，我还是要学它。