this way 和that way 之前的in 常省略 如: You can perform the experiment that way. 请在客户端右上角评价点“满意”即可, 再问: 类似介词短语都可省略介词 也可不省吗? 再答: 中心词是way 时,in常省略。 拓展: be busy(in) doing sth spend time(in) doing sth have difficulty (in) doing sth waste time (in ) doing sth ....