Backing weld(ing)
[化] 打底焊
?? 詞語組成解析
backing
[['b?ki?]]
n. 后退, 襯背, 后援, 支持者\\n[化] 襯墊
??? 情景例句
This DJ is really good.
這個DJ真棒！
I cannot afford two days off a week.
我忙得無法一星期抽出兩天休假。
The guest who arrives half an hour too soon is the greatest nuisance.
客人提前半小時到達是令人討厭的。