记忆方法
双解例句
小知识
When something is impregnable it is not easily taken by force and can stand up to any attack. We usually use it in reference to some form of protection, like a fort or a solid defensive line in football.
The genealogy of the adjective impregnable includes the Middle French word prenable, meaning “vulnerable, easily conquered,” which itself came from the verb prendre, which meant “to take.” The addition of the negative prefix im- flipped the meaning. Impregnable can be used to describe anything that cannot be entered or successfully attacked. Seventeenth-century theater critic Jeremy Collier once said, “True courage is a result of reasoning. A brave mind is always impregnable.”
实用短语
词根词缀
后缀: -able
1. 表形容词,”可以……的,能……的”; 2. 注：如果加在y结尾的单词后通常为去掉y加上icalbe.
adj.
lovable 可爱的,惹人爱的love爱+able可以……的,能……的→adj.可爱的,惹人爱的
acceptable 可接受的,合意的accept接受,承认+able可以……的,能……的→adj.可接受的,合意的
adjustable 可调整的adjust调整+able可以……的,能……的→adj.可调整的
breakable 会破的,易碎的break破坏+able可以……的,能……的→adj.会破的,易碎的
changeable 可改变的change改变+able可以……的,能……的→adj.可改变的
conceivable 可想象的conceive构思,以为+able形容词结尾→adj.可想象的
desirable 值得做的;合意的,称心的;期望得到的desire想望,期望+able可以……的,能……的→adj.值得做的;合意的,称心的;期望得到的
favorable 赞成的,有利的,赞许的,良好的favor好感,宠爱+able可以……的,能……的→adj.赞成的,有利的,赞许的,良好的
impregnable 攻不破的,征服不了的im不+pregn攻击+able可以……的,能……的→adj.攻不破的,征服不了的
inflammable 可燃的,易激怒的inflame使燃烧+able可以……的,能……的→inflammable可燃烧的,可激怒的
inviolable 不可侵犯的,不可亵渎的in不+viol违反,冒犯+able可以……的,能……的→adj.不可侵犯的,不可亵渎的
knowable 可知的know知道+able可以……的,能……的→adj.可知的
obtainable 能得到的,可到手的obtain获得,得到+able可以……的,能……的→adj.能得到的,可到手的
predictable 可预言的predict预言+able可以……的,能……的→adj.可预言的
preferable 更可取的,更好的prefer更喜欢,宁愿+able可以……的,能……的→adj.更可取的,更好的
reliable 可靠的,可信赖的rely依赖+able能……的→reliable可靠的
tractable 易于驾御的,温顺的tract拉+able可以……的,能……的→能够拉[回来]→易管的