It's invincible to arrive at my degree of learning English.
结构It's ... to do sth.
invincible不可战胜的;不能征服的
to arrive at my degree of learning English为不定式修饰invincible
It 作形式主语代表后面整个不定式"to arrive at my degree of learning English"
英语翻译翻译“英语学到我这般地步就已经无敌了” ,越复杂越好,但是单词还是不要太生的.翻译出来后,分析英语句的句子成分,