熊的叫声用英文怎么说

熊的叫声用英语叫做 "growl" 或 "roar"。

"Growl" 来源于古英语 "grōwan"，意思是"发出低沉的声音"。

"Roar" 来源于古英语 "rār" ，意思是"发出响亮的声音"。

下面是一些例句:

The bear let out a growl as it approached the campsite. (熊靠近露营地时发出了一声低吼。)
The pon's roar could be heard from miles away. (狮子的咆哮声可以听到几英里之外。)