Economy
is one powerful motive for camping, since after the initial outlay upon
equipment, or through hiring it, the total expense can be far less than the
cost of hotels.请问为什么两个
since after 连在一起用啊？
And
since India has banned the export of finished vaccines while it serves domestic
needs, Mr Jadhav says that SII cannot fulfill its commitments to Covax, a
global vaccine-sharing programme, and cannot deliver supplies to Europe and
Britain.since原因状语从句是宾语从句的状语从句，...
We have made many firiends since we have lived here.since从句使用了have lived, 是表示目前还住在这里，还是已经不住在这里？如果变成We have made many friends since we lived here是不是表示“离开=不住在这里”了？
This has marked the fourth time since the first modern Olympics (hold) in 1896 that the Games have been completely affected by outside forces.请问各位老师，横线处应该填什么形式呢？通过查询得知since既有连词词性也有介词词性，因此好...
Every hour since I came has been most enjoyable.On the day before we left home, there came a snowstorm.The year after she had finished college she spent abroad.薄冰《英语语法》第四版在定语从句中写道：since, before, after亦可用作表时间的关系副词，并列出上面三个...
...ina has become a Singapore citizen for some years.She has become a teacher since 1990. （自从1990年以来她就一直当老师。）句子可能的含义是：She became a teacher in 1990 and has been a teacher since then.如果这种解释成立的话，那么终结性动词不能和持续性...
...n by the end of 2018 – 25,000 fewer than last year and the lowest number since comparable records began in 1899.
请问这里的时间状语since comparable records began in 1899.是修饰前面的estimated吗？但怎么感觉语意上像在修饰the lowest number ？
...5-126页： I
haven't heard from him since he lived in Shanghai.(自从他住在上海那段时间，我就没有接到过他的来信。)He
has written to me frequently since I was ill.(自从我上回生病期间，他就频频给我写信。)Since
he was at F...