We'd been forewarned of the dangers of travelling at night.我们被预先告知,夜间行路有危险。They put a line of bollards in front of the house.他们在房子前放置了一行路桩。They travelled by day and stayed at hotels by night.他们白天行路,晚上在旅馆过夜。The people want to be able to walk the streets in safety.人们希望能够保障街头行路安全。