必胜的信心

confidence of victory

必经之路

path that has to be taken

我明天必到。

I will certainly arrive tomorrow.

其中必有秘密。

There must be something secret to it.

侵略者必遭失败。

Aggressors will meet with certain failure.

必不可少的东西

something indispensable

知过必改

always make good any failings one is aware of

干部必读

necessary reading for cadres

必欲置之死地而后快

must settle for nothing less than its complete destruction