since ten years since ten years ago区别

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/05 16:05:41

since ten years since ten years ago区别
since ten years since ten years ago区别

since ten years since ten years ago区别
你貌似写错了吧,应该是for ten years
因为since是加时间点,不可能加时间段的,是for加时间段
for ten years=since ten years ago,且都用于现在完成进行时
举个例子就是:
I have been collecting kites (for ten years)或(since ten years ago)