Backing weld(ing)
[化] 打底焊
🧩 词语组成解析
backing
[['bækiŋ]]
n. 后退, 衬背, 后援, 支持者\\n[化] 衬垫
🗣️ 情景例句
He was killed on the spot.
他当场被杀。
Jack is up and about now.
杰克病后复原了。
CONGRATULATIONS!
祝贺你们！