at the weekend的用法和樣例：
例句
- They live in London during the week and go to the country at the weekend.
他們從星期一到星期五都住在倫敦，周末到郊外去。 - The office is closed at the weekend.
這個辦事處星期六和星期日不辦公。 - `Where are you going at the weekend?' `Nowhere special (ie Not to any special place).'
｀你打算到哪兒去度周末?＇｀無處可去. - If need be, I can do extra work at the weekend.
必要時我可以在周末加班。
