Melanisms
(melanism 的復數) n. 黑變病\\n[醫] 黑變病, 黑素沉著病
??? 情景例句
Are you involved in any extra-curricular activities on campus?
你在學校參加過任何課外活動嗎？
I can't tell.
我說不準。
John is a Canadian. He lives in a tall building in the city of Toronto.
約翰是加拿大人。他住在多倫多市的一幢高樓里。