Backstep welding
[化] 分段退焊
🧩 词语组成解析
后退
a. 焊的\\n[机] 熔接, 焊接, 锻接
🗣️ 情景例句
A table spoon is much bigger than a teaspoon.
汤匙要比茶匙大得多。
I'm sorry, I'm late, I got mixed up about your address.
非常抱歉，我迟到了，我把你的地址搞错了。
If I had been, I would not have been able to get home for lunch. '
如果真戴着它，我现在就不能回家来吃午饭了。”