since three days ago的意思|示意

My dad left three days ago, and since then I have been flying solo.

爸爸已经离开了三天了，以后我就得一个人单飞了。

But I've not heard anything of him since I last left food and some clothes for him, and that was three days ago.

但是，自从上次给他送食物和衣物以来，我便再也没听到过关于他的情况。那已是三天之前的事了。

You should have come to pick up your ticket three days ago since it's an intemabonal flight. any reservation without reconfirmation within 72 hours will be cancelled.

由于这是国际航班，因此如果您没有在飞机起飞前72小时内再确以预订。 您的预订将被取消。

Weather conditions have been harsh since the three were reporting missing eight days ago, with heavy snow fall and wind gusts of up to 100 MPH.

自从三名登山者被发现失踪以来的八天时间里天气状况一直十分恶劣，强降雪伴随着时速100英里的大风一直肆虐。