这里有一个倒装,还原语序为He became so uncertain about the background of his audience that he didn't know how to start his lecture.
他不确定听众的来历,不知道怎么开始他的演讲.
不是become about.倒装是为了强调uncertain
供参考,
这里有一个倒装,还原语序为He became so uncertain about the background of his audience that he didn't know how to start his lecture.
他不确定听众的来历,不知道怎么开始他的演讲.
不是become about.倒装是为了强调uncertain
供参考,