Etiologies
(etiology 的復數) n. 病原學, 病因學\\n[醫] 病因學, 病原學
??? 情景例句
It is OK to ask children how old they are.
問小孩多大了是可以的。
Please come in and have a orange.
請進來吃一個桔子。
Where do you come from?
你是哪國人？