Arcogen welding
[機] 弧氧熔接
?? 詞語組成解析
a. 焊的\\n[機] 熔接, 焊接, 鍛接
??? 情景例句
Robbie, we'll go fishing soon, Robbie
啊， 我們很快就會去。
At open doors dogs come in.
狗從開著的門中進來。
How did the bees know exactly in which diection to fly?
蜜蜂是怎樣確切地知道朝哪個方向飛呢？