A bull in a china shop（瓷器店里的公牛） It said：China is fragile(瓷器是易碎的), bull is rude(牛是粗鲁的), when the bull in a China shop, it would break the China.(当一头公牛进了瓷器店，它很容易就会打碎瓷器) 所以意思是说：在一个需要举止小心得体的场合，闯进一个行为粗鲁、手脚笨拙、会惹麻烦的人。

啊~ 我也是第一次听说

這個要問廠家一定得出答案來。

Literally it means: The ox or the bull inside Chinaware store. It seems like an expression referring to often getting in trouble with rude or vulgar people ( not sure of the meaning though).

baidu了一下~ 意思是： 常常闯祸的粗人