要注意at不能省略,因为有的特殊句型会把look 与 at分开,所以这是要注意的.
而at是介词,因此后面不能跟句子,如果加的话,应该是加名词或者动名词,或者是短语,再或者是用定语(从句)修饰的名词.
例如:Look at those boys who are playing football,they.
OR :Look at those playing boys,they...
要注意at不能省略,因为有的特殊句型会把look 与 at分开,所以这是要注意的.
而at是介词,因此后面不能跟句子,如果加的话,应该是加名词或者动名词,或者是短语,再或者是用定语(从句)修饰的名词.
例如:Look at those boys who are playing football,they.
OR :Look at those playing boys,they...