what appears once in every minute,twice in every moment,but not once in a hundred years?

what appears once in every minute,twice in every moment,but not once in a hundred years? 英语翻译41.What person does every man take his hat off to?42.What can you swallow than can also swallow you?43.Which three letters can frighten a thief away?44.What appears once in every minute,twice in every moment,but not once in thousand years 英文谜语求解答.1Look in my face,I am somebody;Look in my back,I am nobody.谜底：（ ）2 What do you call a witch at the beach?谜底：（ ）3 What kind of dog never can bite and bark?谜底：（ ）4 What appears once in every minute,tw What apperars once in a minute,twice in moment,but not once in a hundred years? what's happening once in a minute twice in a week and once in a year?what's Once in What can be found once every minute ,twice every moment,but once in a thousand year? Looking at a clock in the mirror ,the time appears to be half past four.What time is now? What apperars once in a minute,twice in moment,but not once in a hundred years?请回答 what occurs once in a minute,twice in a moment,and not once in a hundred years? What can be found once in every minute,twice in every moment,but not once in a thousand years? What can be found once in every miute,twice in every moment,but not once in a thousand years? What occurs once in every minute,twice in every moment,but not once in a hundred years? 英语翻译in ENglish句型：It appears what happens twice in every moment,once in every minute,and never in a thousand years? What comes twice in a moment,once in a minute and never in a hundred years? what comes once in minute,twice.in moment,never appear in a thousand years. What happens twice in every moment,once in every minute and never in a thousand years?