Plurals复数转换规则汇总
As a general rule, the plural is formed by adding -s to the singular form of nouns.较常见的是在单数形式后面直接加-s (来源：www.
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- shoe –> shoes
- book –> books
- river –> rivers
- bus –> buses
- kiss –> kisses
- party –> parties
- supply –> supplies
- one man –> two men
- one woman –> two women
- one person –> two people
- one foot –> two feet
- one mouse –> two mice
- one goose –> two geese
- one tooth –> two teeth
- one wife –> two wives
- one child –> two children
- one knife –> two knives
- one thief –> two thieves
- one dwarf –> two dwarves (ou: dwarfs)
- one potato –> two potatoes
- one leaf –> two leaves
- one life –> two lives
- one loaf –> two loaves
- one half –> two halves
- one moose –> two moose
- one sheep –> two sheep
- one aircraft –> two aircraft
- one alumnus –> two alumni
- one syllabus –> two syllabi
- one alumna –> two alumnae
- one alga –> many algae
- one criterion –> many criteria
- one forum –> many fora (or: forums)
- one thesis –> two theses
- one hypothesis –> two hypotheses
- one phenomenon –> two phenomena
- one cactus –> two cacti (or: cactuses)
- one diagnosis –> two diagnoses
- one oasis –> two oases
- one analysis –> two analyses
- She gave me some information.
- Michelle has a lot of clothes.