I wrote a column last month discussing whether runners should train with a coach - and not a single reader wrote in to ask how to find a coach.

上个月，我写了一个专栏，讨论跑步者是否应该接受教练的培训——不止一个读者写信咨询如何找到一个教练。

youdao

A seal can make and hold a single note for what seems like an indefinite period. You hear it in the distance and it sounds like a railroad train with its whistle stuck at a nearby station.

海豹会长时间的保持一种音调，在很远的地方你就能听到，这种声音类似于火车快进站时鸣笛被塞住时发出的闷响声。

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I have never lost that much paint and we did not even get a single photo at the train.

我从来没有丧失，许多涂料，我们甚至没有获得一个单一的照片上了火车。

youdao

He approached Union Pacific (nyse: UNP - news - people ) Railroad and CSX (nyse: CSX - news - people ) Transportation about dedicating a single train full of refrigerated cars that could travel from the West Coast to the East Coast without getting waylaid.

FORBES: Join The Cold Train

She died when her Fiat Punto car was struck and shunted down the track by a 105-tonne single locomotive, which was being used to familiarise train drivers on the Cambrian Coast Line.

BBC: Track lights urged after Gwynedd woman's death

When longtime entrepreneur and Columbia B-school adjunct professor Angela Lee founded 37 Angels, her eight-month-old angel network and initiative to train women to become investors, she began with a single stat.

FORBES: Tipping The Scales: Women Angel Investing Reaches All-Time High