Be up to your neck in something:

To have a lot of something to deal with

在某事上面忙得不可開交

例句：

We're up to our neck in debt. 

我們債務(wù)累累。

Get it in the neck:

受到懲罰

例句：  

I'll get it in the neck, I'm sure, when my mom finds out that I broke it. 

我媽知道我打破這只花瓶后，她肯定會(huì)懲罰我的。

By a neck:

If a person or an animal wins a race by a neck , they win it by a short distance 

以微弱優(yōu)勢(shì)（領(lǐng)先）

例句： 

In the basketball game China beat the Japanese by a neck. 

在那場(chǎng)籃球賽中，中國(guó)隊(duì)以微弱優(yōu)勢(shì)險(xiǎn)勝日本隊(duì)。

（素材來自網(wǎng)絡(luò)，如有侵權(quán)請(qǐng)聯(lián)系刪除）