obstruction的近义词有:obstacle, barrier, obstruction, bar, hindrance。下面这些名词均含"障碍(物)"的含义:obstacle:指在达到目的或前进的过程中必须消除或绕过的障碍物,也指起阻碍作用等情况。barrier:常指临时的或者可能跨越的障碍。obstruction:常既指具体的障碍又可指抽象或喻意上的阻碍。bar:既可指阻止进出或通过的栅栏一类的障碍物,也可用于抽象意义障碍。h...
This design is in pastel colours with three rectangles and three triangles.这一设计由淡色的3个长方形和3个三角形构成。The open rectangles represent typical elements of the ion fluid.空心的矩形表示典型的离子流体元.Label the rectangles, and illustrate and de...