回答数
4
浏览数
266
mon也是部长
welded steel tube/welded pipe
yiyiling1221
你好！墙有耳，壁有缝Walls have ears and walls are sewn
零下十三月
Pipe A pipe joints
hanzhe2013
中文：生命必须有缝隙，阳光才能照得进来。英文：Life must have gaps, and sunlight can come in.
优质英语培训问答知识库
