look sth.

look sth. look up sth还是look sth up look at doing sth look at sth.=have a look at sth. 为什么look at sth不能用look sth at look at sth,or watching look sth up求造句. look sb sth=look sth for sb .look是双宾结构吗,分别举个例子. look foward to sth /doing sth什么意思 用look at sb/sth造句 为什么是 look foward to doing sth? look forward to do/ 还是 doing sth 用look at sb/sth造句 look up sth.和look up at sth.的区别复制搜索 look forward to doing sth和look forward to do sth的区别? look for sth 不是look sth forlook for sth 不能说是look sth for.与此类似的介词短语还有哪些?有什么共同特点?如何区分? 造句：hear sb do sth .look at sb do sth.make sb do sth .notice sb do sth .observe sb do sth . look forward to是否等于expect to so sth