无关痛痒的英文：
to share a common lot; to have loving concern for each other

参考例句：

The lawyer's seemingly innocent question caught the witness off his guard.
那个律师提出的似乎无关痛痒的问题,把证人问得措手不及.

She broke from the inconsequent meaningless mild tone of irony
她中断了她无关痛痒，无足轻重的温和的嘲讽语调。

share是什么意思：
n. 一份；分摊，分担；股份；
v. 分享；分担

Divide sth into shares(share )to give to several people
把某事物按份儿分给(若干人)

Some are bulling shares.
有些人正大量买进股票以抬高价格。

The cutting blade of a plow;a share.
犁刃，犁头犁上切割用的刃；铧头

common是什么意思：
adj. 普通的；一般的；通常的；通俗的；公共的，共有的；共同的
n. 普通；平民；公共地

international common
国际公地

Commonness is happiness.
平凡是福。

A common danger causes common action
同仇敌忾

lot是什么意思：
n. 很多，多数；全部；一批；一块地；签；抽签
v. 划分；抽签

to decide By lot
抽签决定

It was settled by lot.
这事是以抽签决定的。

It was settled by lotting.
这事是以抽签决定的。