adj.易攻擊的；弱的；有弱點的

Some had come from Glasgow, their faces registering disbelief that they had found a fixture that neither touts nor smooth-talking could render pregnable. 有些球迷來自格拉斯哥，他們的臉上寫著難以置信：他們發(fā)現(xiàn)這場比賽既沒有黃牛黨，也沒有花言巧語可以過關(guān)的縫隙。

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 . 看到這里，也許有朋友會問，既然如此難道該因素不適用于外國人嗎？

A pregnable fortress. 易攻破的城堡

a pregnable fort 易攻破的要塞

adj.堅不可摧的；不可戰(zhàn)勝的