1、The second party was in direct opposition to the first.
第二派與第一派相反。

2、Sixth, like the second party changes for some reason, the first party does not return the rent.
如乙方因故變動，甲方不退還租金。

3、The second party USES this public key to encrypt its secret key.
另一方使用這個公鑰加密其秘鑰。

second party翻譯