暗闇的英文：
1.secretly; inwardly

secretly是什么意思：
adv. 秘密地，背地里

They secretly entered into collusion with the northern warlords.
他们喑中和北洋军阀勾结起来。

She was playing with fire by secretly borrowing office funds.
她暗中挪用公款简直是玩火。

To act together secretly to achieve a fraudulent, illegal, or deceitful purpose; conspire.
共谋，串通秘密地聚集在一起行动以达到叛逆、不合法的或欺骗目的；阴谋策划。

She was secretly vetted before she ever undertook any work for me.
她在为我工作以前曾受到过秘密考查。

He secretly funnelled credit-card information to counterfeiters.
他偷偷地把信用卡信息传递给造假者。

inwardly是什么意思：
ad. 在内部,内里;向内,向中心

Kept his lips closed with the expression of a man inwardly laughing
他的嘴唇闭着，带着一个人暗笑的表情

He inwardly sighed and felt it necessary to unmask his second argument
他不觉暗中叹气，同时觉得得把他的第二步办法使出来。

Boys arrange the unlimited window to throw the snow ball inwardly.
男孩子们顺敞开的窗户往里面扔雪球。

But U.S. imperialism while outwardly strong is inwardly weak
但是，美国帝国主义是外强中干的。

I had steeled myself to brazen it out, though I was trembling inwardly.
我虽然内心在战栗，但是硬着头皮想挨过去。