Preweld
焊接前, 烧焊前
🗣️ 情景例句
They concluded that the goods were of good quality and proved no problem.
他们断定货物质地优良，并证明没有任何问题。
Well, I can't get over how different the weather is here.
噢，想不到这里的天气大不一样。
They leave unwanted objects in drawers, cupboards and attics for years,
他们在抽屉里，碗柜中、阁楼上堆放着一些不用的东西，一放就是好几年，