The police were asked to keep an eye open for the little boy who had got lost in the square. 警方奉命密切注意在廣場走失的小男孩子(的方向)。
Keep a weather eye open for any small faults with your car- if they're not repaired immediately they could cost you a lot of money later. 汽車無論出什麼小毛病，你都要留心——如果不立即修理，說不定哪一天會使你花去許多錢的。
All the doors were laid open for his departure, not without the privity of the King. 所有的門都為他的離開而開啟，而國王對此事並非一無所知。
The school has only been open for six months, so it's too early to evaluate its success. 這所學校開辦還不過六個月，所以要對它的成績作出評價為時尚早。
