Welding of tubes
[化] 炉管焊接
🧩 词语组成解析
a. 焊的\\n[机] 熔接, 焊接, 锻接
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
n. 管子, 导管；管状虫；伦敦地铁（tube的复数）
🗣️ 情景例句
Can you do me a favor?
你能帮我个忙吗？
I wrote several letters on my mother's behalf.
我代表我母亲写了几封信。
Yes, it's Bob here. Can you ask him to call me back?
可以，我是鲍勃。你能请他给我回个电话吗？