such as的用法我知道它后面跟doing,但如果是两句话,像such as playing the piano,watch(还是watching)TV,此类的逗号后面还是doing吗,请说清楚,再举几个例子另外,like 的用法,要求同上.怎么每个人都不一样

doing 就是“做”的意思
playing the piano 跟 watching TV 是已经指明了动作所以不需要用到doing
I am doing something. (一个句子）
I am playing the piano, watching TV, and exercising. 后面是绝对不用加doing的
like是“像”的意思
I am just like you. 我就像你
This egg just looked like the ball 这个蛋看起来像球
大概就这样的用法

such as 加名词，动名词（就是doing sth)都可以,动名词一定是ing形式。
例：I have many interests,sucn as surfing on the internet,doing sports and so on.
like做例如什么什么时，用法同上

doing 就是“做”的意思
playing the piano 跟 watching TV 是已经指明了动作所以不需要用到doing
I am doing something.(一个句子）
I am playing the piano,watching TV,and exercising.后面是绝对不用加doing的
like是“像”的意思
I am just like you.我就像你
This egg just looked like the ball 这个蛋看起来像球
大概就这样的用法