他们一大早就出发了,路上行人稀少,所以旅途花的时间比预期要少。
In the United States, it is not customary to telephone somenone very early in the morning.在美国,人们不习惯在大清早给人打电话。
Now, there are over one hundred balloons flying every day early in the morning as the sun rises.现在,每天清晨太阳升起的时候,都有一百多个气球在空中飞舞。