Weld(ing) defect
[化] 焊接缺陷
🧩 词语组成解析
🗣️ 情景例句
He's writing to invite me
他写信邀请我
We must get back to first principles.
我们必须回到基本原则上来。
It's a pleasure to meet you. Can I take those boxes for you?
很高兴认识您。我能帮您拿那些箱子吗？