it necessary it's necessry的区别 It's necessary to be prepared ...

essential\u548cnecessary\u7684\u533a\u522b

1\u3001essential\uff1aadj. \u57fa\u672c\u7684\uff1b\u5fc5\u8981\u7684\uff1b\u672c\u8d28\u7684\uff1b\u7cbe\u534e\u7684 n. \u672c\u8d28\uff1b\u8981\u7d20\uff1b\u8981\u70b9\uff1b\u5fc5\u9700\u54c1
2\u3001necessary\uff1aadj. \u5fc5\u8981\u7684\uff1b\u5fc5\u9700\u7684\uff1b\u5fc5\u7136\u7684 n. \u5fc5\u9700\u54c1 n. (Necessary)\u4eba\u540d\uff1b(\u82f1)\u5185\u585e\u745f\u91cc
3\u3001\u533a\u522b\uff1aessential\u7684\u540d\u8bcd\u610f\u601d\u662f\u672c\u8d28\uff1b\u8981\u7d20\uff1b\u8981\u70b9\uff1b\u5fc5\u9700\u54c1\u3002\u800cnecessary\u7684\u540d\u8bcd\u610f\u601d\u53ea\u6709\u4e00\u4e2a\u201c\u5fc5\u9700\u54c1\u201d

\u53ef\u4ee5\u5e76\u5217\uff0c\u8fd9\u4e5f\u662f\u6700\u4fdd\u9669\u4e0d\u51fa\u9519\u7684\u65b9\u6cd5\u3002
\u4e0d\u8fc7\uff0c\u5982\u679c\u5e0c\u671b\u53e5\u5b50\u66f4\u6709\u903b\u8f91\u6027\uff0c\u4e5f\u53ef\u4ee5\u7528so\uff0cand\u7b49\u8bcd\u8fdb\u884c\u8fde\u63a5\uff0c\u5982\uff1a
Having the answers ready will be of great help, so it's necessary to be prepared for a job interview.

It's necessary 可以是句子 (ie. It is necessary 这是必要的)
it necessary 被放句子的中间
eg. It is necessary to boil water before drinking 饮用前有必要烧好开水
eg. I find it necessary to boil water before drinking

同样意思, 不同表达, 第二句 it 等于 "boil water before drinking" 这个动作

扩展阅读：it is hardly necessary ... madness conmbat rule34 ... it was necessary that ... its necessary doing ... is it necessary to shout ... it is quite necessary ... it is necessary for ... we consider it necessary ... i think it necessary ...