Ultrapurity
超纯度
🗣️ 情景例句
What time do you usually have supper?
你通常几点吃晚餐？
No pleasure without alloy (or pain or repentance).
乐中有悲。
Hi, Kate.Next Sunday is my birthday. Can you come to my birthday party?
你好，凯特。星期天是我的生日。你能来参加我的生日聚会吗？