a stern face嚴(yán)肅: serious; solemn; earnest的: 4次方是 The fourth power of 2 i ...面孔: face; map一副嚴(yán)肅的面孔: a solemn look一付嚴(yán)肅的面孔: a dignified appearance下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯