Welding backing
[化] 焊接衬垫
🧩 词语组成解析
a. 焊的\\n[机] 熔接, 焊接, 锻接
backing
[['bækiŋ]]
n. 后退, 衬背, 后援, 支持者\\n[化] 衬垫
🗣️ 情景例句
Does he know you're here?
他知道你在这 吗？
Don't forget to put stamps on your letter.
别忘了贴邮票。
Enjoy yourself!
祝你玩得开心！