Aetiologist
n. 病因学家；病原学家；原因论学家 (aetiology的变形)
🗣️ 情景例句
And take measures to reinforce them. Please set your mind at rest.
并采取措施加固。请放心好了。
It seems he's lucky.
看起来他好像很幸运。
He was rather elderly with grey hair and clear blue eyes.
他上了年纪，有着灰白的头发和明亮的蓝眼睛。