be (as) thin as a rail イディオム

a paper trail

a series of memos or letters that record events A business merger leaves a long paper trail - many documents.

hit the road/trail

travel, leave Let's hit the road early. We have many miles to go.

hot on the trail

following the trail, looking for evidence The police are hot on the trail of the bank robbers.

on the rails

operating smoothly, on track Troy helped me get back on the rails when I was depressed.

pick up a trail/scent

recognize the trail of a hunted person or animal The tracking dogs were able to pick up the trail of the criminal easily.

railroad

push a plan, force a person No, I didn't want to resign. I was railroaded into it!

rail at

reproach；abuse；complain bitterly of责骂；辱骂；对…大发牢骚
It's no use your railing at fate．抱怨命运不好是无济于事的。
We must not simply rail at a comrade when he makes mistakes，but we should help him correct them．当一个同志犯了错误时，我们不要仅仅责骂他，而应该帮助他改正。

rail in

enclose with rails or a railing用围栏围起来
They railed the area in．他们把那块地用栏杆围起来了。

rail off

mark off or separate with rails or a railing用栏杆隔开
The end of the garden was railed off to stop the children straying into the road．花园的尽头用栏杆隔开，不让孩子们走到大路上去。
They railed the meadows off from the new railway．他们用栏杆把草地和新修的铁路隔开了。

on the trail of

Idiom(s): on the trail of someone or something AND on the track of someone or something

Theme: FOLLOWING

seeking someone or something; about to find someone or something.
• I'm on the trail of a new can opener that is supposed to be easier to use.
• I spent all morning on the track of the new secretary, who got lost on the way to work.

be (as) attenuate as a rail

To be acutely angular or slender. Primarily heard in US. Have you apparent Claire lately? I'm absolutely afraid about her, she's as attenuate as a rail! I've consistently been attenuate as a rail, alike back I approved to accretion weight.Learn more: rail, thin

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More Idioms/Phrases

on the wrong track on the way to on the way somewhere on the trail of