Welding flux backing
[化] 焊剂垫
🧩 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
She's still giving the toughest English history exams
她仍用最艰深的英国史试题考学生
He means trouble.
他存心捣蛋。
I turned on the radio. She stopped crying and listened to the music.
我打开收音机，她不哭了，听音乐。