发布网友 发布时间:2022-04-21 19:22
共2个回答
热心网友 时间:2023-10-18 12:11
as 和since两个单词都表示众所周知的,或显而易见的原因,但意思稍有些不同,
as表示正如....那样.
而since表示既然,,,,,
for表示推测原因,一般只能放在句中,如:
As you see , he is better than you at study.
Since everyone is here, let's begin.
It must have rained last night, for the ground is wet.
热心网友 时间:2023-10-18 12:12
...呃,这么说吧,for后面加一段时间,例如 for two years
而since 后面是加一段时间再加 ago,或者加一个具体的时间,例如 since three years ago 或 since 1998