A ghost of a smile touches his lips.

他的唇露出一丝不经意的笑。

With very good intentions but very often making inadvertently the matters worse.

人都心存好意但往往在不经意间使事情变得更糟。

Leave your phone at home by accident.

不经意把手机留在家里。

Every so often our toes touch momentarily but without raising much notice.

脚趾头几番不经意相触。

One night, the girl went into the chicken house.

一天晚上，女孩不经意走进。

That time spent eating are we mindlessly eating are we being?

我吃东西的时候是不经意的随意乱吃?

They say funny things without even meaning to half the time.

他不经意就能讲出让人捧腹的话。

You will learn vocabulary unintentionally almost in the background.

你会在故事背景中不经意词汇。

" Yeah, reckon so, " said Harry casually.

“对，大概吧。”哈利不经意说。

I'm gonna casually drop how badass the suit is...

我会不经意提起那件战衣有多牛逼。

He carelessly gave her his hand.

他不经意将手伸给她。

The number one random act of kindness was a) giving a smile.

排在首位的不经意善举是a）给别人一个微笑。

From a puzzle in need of solutions to a more serendipitous path of discovery.

从需要解决方案的难题不经意的探索之路。

Serendipitously, Curtis loved making ice cream.

不经意间，柯蒂斯喜欢上做冰淇淋。

Just casually slip it in, you know. Lay the groundwork.

不经意跟她提起这件事 装做轻描淡写的样子。

They found the noble princess accidentally.

他居然不经意间遇一位身份高贵的公主。

Let's check out some sleep habits that may accidentally harm your health.

来看看这些可能会不经意间损害健康的睡眠习惯吧。

A shock ran through my body at his casual touch.

他不经意的触碰让一阵震撼传遍我的全身。

Once, her leg accidentally brushed against mine.

有一回，她的腿还不经意掠过我的腿。

In an atmosphere of casual anti-semitism the shame of truth was simply unendurable.

在当时不经意反犹的气氛下，真相带来的羞耻简直难以忍受。