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,wa

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

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 a...

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