My grandfather was as pale as a ghost when he entered the hospital.
(as pale as a ghost means extremely pale)
（as pale as a ghost指面无血色）
My grandmother is 92 years old, but she still sharp as a tack,
(sharp as a tack means mentally agile.
（sharp as a tack指思维敏捷地）
My mother is back on her feet after being sick for two weeks.
(back on her feet means healthy again)
（back on her feet指重新恢复健康）
My uncle is very sick and has one foot in the grave.
(has one foot in the grave means near death)
（has one foot in the grave指濒临死亡的）
Never in a million years did I think that I would actually win the lottery.
(never in a million years means absolutely never)
（never in a million years指从未）