1、possibility
可能;可能性;
There were several possibilities open to each manufacturer.
每个制造商都可以有几种不同的选择 。
2、obstruction
阻碍,受阻;
John was irritated by drivers parking near his house and causing an obstruction.
约翰对那些在他家附近泊车堵住通道的司机感到恼火 。
A passer-by told the driver to move his car so that it was not causing an obstruction.
一个过路人叫那个司机把他的车挪一挪,免得挡道 。