adj.易攻击的；弱的；有弱点的
Some had come from Glasgow, their faces registering disbelief that they had found a fixture that neither touts nor smooth-talking could render pregnable. 有些球迷来自格拉斯哥，他们的脸上写着难以置信：他们发现这场比赛既没有黄牛党，也没有花言巧语可以过关的缝隙。
If you've ever looked upon sperm as a little army of white-coated soldiers setting off to sack and pillage a barely pregnable fortress . 看到这里，也许有朋友会问，既然如此难道该因素不适用于外国人吗？
A pregnable fortress. 易攻破的城堡
a pregnable fort 易攻破的要塞
adj.坚不可摧的；不可战胜的
