Which seasons do you like best?中的season为什么后面要加S呢

Which seasons do you like best?中的season为什么后面要加S呢 ______ the four seasons,which season do you like best 是Which season do you like best?还是Which seasons do you like b Which season do you like best?Which seasons does she like be which season do you like best?翻译 Which season do you like best?( Which season do you like best?(意思) Which season do you like best?Why? which season do you like best?中文翻译 which season do you like best which season do you like best ? why ? which seasons do you like best（英译中）