可以不用，如果说只有一个爱好
当有多个爱好时，hobby变y为i，加es
hobbies ['hɒbɪz] ，n. 业余爱好( hobby的名词复数 ); [例句]Her hobbies were playing the guitar and sketching.她爱好弹吉他和画素描。 原型： hobby
看是一个或多个，但是hobby是可数名词
writing cartoon stories.首先writing是动名词，顾名思义，兼具动词和名词性质。动词性质因为其后跟了名词作宾语。名词性质因为做了is的表语。stories用复数则是从意义上来说，从常理推断，写卡通故事肯定不是写一个，而至少要一个以上，故而是...
辅音加y结尾必须把y变i 加es 所以hobby的复数形势是hobbies
men women boys hobbies these those stamps letters
你好！ What is your favourite hobby? There aren't photos here. 百度教育团队【海纳百川团】为您解答 如满意，请点击“选为满意答案”按钮，谢谢～
building-buildings letter-letters hobby-hobbies life-lives story-stories half-halves