例句：Eighty divided by four is twenty.
翻譯：八十除以四等於二十。
變化
● 單數：twenty [ˋtwɛntɪ]
● 複數：twenties [tw'ɛntiz]
例句：The teacher was sad that twenty students failed in the exam.
翻譯：老師很難過有二十個學生考試不及格。