my sister,who is from Boston / my sister who is from Boston.一个逗号就会影响整个句子的内容,怎么区分呢 还有unlike如何使用呢?

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my sister,who is from Boston / my sister who is from Boston.一个逗号就会影响整个句子的内容,怎么区分呢 还有unlike如何使用呢?
my sister,who is from Boston / my sister who is from Boston.
一个逗号就会影响整个句子的内容,怎么区分呢
还有unlike如何使用呢?

my sister,who is from Boston / my sister who is from Boston.一个逗号就会影响整个句子的内容,怎么区分呢 还有unlike如何使用呢?
你这个句子不完整
My sister who is from Boston is a teacher.
My sister,who is from Boston,is a teacher.
这样才可以
不加逗号就是将这个从句作为条件、
我那一个从波士顿来的姐姐是一个老师
加了逗号、一般就表示我只有一个姐姐
我的姐姐是从波士顿回来的,他是一个老师.
unlike 和like是一样用的
unlike+doing或者to do

这不是完整的句子，只是主语加了一个从句
有逗号就是同位语从句，后者对前者补充说明；
没有逗号就是my sister领导的条件状语从句，限定前者范围
意思上没多大改变，也要视语境而定
unlike
adj. 不同的，不相似的
prep. 和…不同，不像
形容词和介词晓得杂用了吧...

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这不是完整的句子，只是主语加了一个从句
有逗号就是同位语从句，后者对前者补充说明；
没有逗号就是my sister领导的条件状语从句，限定前者范围
意思上没多大改变，也要视语境而定
unlike
adj. 不同的，不相似的
prep. 和…不同，不像
形容词和介词晓得杂用了吧

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填冠词 Who is the ( ) girl she is ( ) my sister who is the ( ) girl?She's ( )my sister.填冠词 Who is more beautiful?A.My sister B.Me The girl which is singing is my sister 与The girl　who is singing is my sister都有么 The girl who is in green hat is my sister.为什么要加who?它和the girl in green hat is my sister.的意思一样么? she is my sister. My sister is a my sister is a My sister is a my sister is my sister is my sister is zhangjing is my sister. Who one is your sister? who the is girl sitting my is under the sister tree怎么组成一句话? who is the____ girl （填冠词）she is ___ my sister. who is singing over there?———— （ ）is my sister 连词造句 who,the,is,girl,sitting,my,is,under,the,sister,tree