barrier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。hindr...
That's a skillful piece of bricklaying.那是件精巧的砌砖工作.Now, I'm going to show you something about bricklaying.我现在要告诉你一些有关砌砖的事.We don't train them only in bricklaying, but also in other building techniques.我们不仅仅...
每个能够参加战斗的男子现在都决心要保卫这条山脊。Every man who could fight was now committed to defend the ridge.为保卫祖国而献身的战士soldiers who died in defence of their country将军派遣一支小部队去保卫宫殿.The general detached a small force to go and guard the palace...