Preweld
焊接前, 烧焊前
🗣️ 情景例句
Thanks for your understanding and cooperation.
谢谢你的理解和合作。
Does John have a yellow pencil?
约翰有一支黄铅笔吗？
The beautiful are envied by the ugly.
美人总为丑陋者所嫉妒。