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
If the mood takes me, I'll head down the beach for an evening stroll.
如果心情不好，傍晚我会到海边散步。
Nature teaches us to love our friends but religion our enemies.
自然教我们爱朋友，宗教却教我们爱敌人。
What a strong wind! It's blowing strongly.
好大的风啊！风刮的好大。