?不可阻挡
... Blocked : 被阻挡 Unblockable : 不可阻挡 Unblocked : 不可被阻挡 ...
?不可防御
... 不安全 Unsafe 不可防御 Unblockable 不可受身倒地 Unrecoverable Knockdown ...
防御不能
"Help us turn Defcad into the world's first unblockable, open-source search engine for 3D printable parts, " says Mr Wilson in the video posted on the website looking for funding.
BBC: 'Pirate Bay' for 3D printing launched
unblockable:
un- +? blockable
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。