Some of them are like setting a trap ( with obstructions ).有些像是设的陷阱 ( 有障碍物 ).They went ahead of us to clear the road of obstructions.他们走在我们前面清除路上的障碍.Ruler shows the distance in meters to nearest obstructions.标尺显示到最近的阻碍的距...
pretty的比较级形式是prettier。The comparative of "pretty" is "prettier".在这一单元中, 有许多形容词, 请依据前面所讲,写出他们的比较级.In this unit, are many adjectives. Please write their comparatives.比较级可以通过词形或者语义来实现.The degree of comparison can be express...