Welded fissure
[化] 焊接裂纹, 焊接裂缝
🧩 词语组成解析
v. 焊接；使结合（weld的过去分词）
🗣️ 情景例句
What does John do?
John现在做什么事？
It's very cold outside.
外面非常寒冷。
I don't know. I'll check.
不知道，我问问看。