appearance是可数名词。Don't be fooled by his appearance.
不要被他的外表所蒙蔽。
She sets great store by her appearance.
她十分看重自己的外貌。
He worries obsessively about his appearance.
他过度烦恼自己的外表。
She used to be so fussy about her appearance.
她过去过分在意自己的外表。
She once made a brief appearance on television.
她曾在电视上短暂露面。
appearance是可数名词，appearances中文意思是外观
He was a small and by all appearances an unassuming man.他是个个子小并且从一切表象看来不装腔作势的人。
He was infinitely more assured than in his more recent concert appearances.比起他之后的音乐会上露面他那次要有信心得多。
