作业帮 > 英语 > 作业

it was only a matter of time before weapons designers adapte

来源:学生作业帮 编辑:大师作文网作业帮 分类:英语作业 时间:2024/11/13 00:10:12
it was only a matter of time before weapons designers adapted it for the detection of submarines.谁帮我分析一下句子结构?为什么中间用before不用that?
it was only a matter of time before weapons designers adapte
matter of time (时间问题)是习惯短语,并不需要用that来引导作另外补充说明.句子是说"在武器设计人员将某某换为detectoin of submarines以前,某某都只是时间问题."用before只是句子本意需要.