With a mobile phone, you can tweet a message and start a protest in Egypt.
有了手机

A wisp of a smile.
一丝微笑

a stile a turnstile.
旋转栅门

A shop dealing with customers courteously does a Booming Business, while a man without a smiling face should not open a shop.
礼貌待客生意好, 人无笑脸休开店。

launch a blow, a missile, a torpedo, a satellite
发出一击, 发射导弹, 发射鱼雷, 发射卫星

She is a a facile worker.
她很能干。

To help a lame dog over a stile
仗义勇为

a quarter of a mile
四分之一英里

A girl screams at a mouse, but smiles at a wolf.
看到小老鼠会尖叫, 但。

salute a person with a smile.
以笑脸迎人

have a holiday once in a while
偶尔休一次假

She haves a headache once in a while.
她时而头痛。

A lame turtle can go a thousand miles by perseverance.
跛鳖千里

A new sink, a toilet and a picture.
一个新水槽，一个便桶和一副画。

Air is a fluid but not a liquid， while water is both a fluid and a liquid.
空气是流体不是液体，水是流体也是液体。

To prepare a list of the contents of a file or a document.
编制文件或资料的目录表。

A car towing a trailer.
拖引拖车的汽车。

I had a kid in a crib in my bedroom for a while.
我有小孩已经有一段时间了

That his face betrayed a hint of a smile.
才面露微笑

Is configured to load a. Wav file from a.
被配置为从

I swim a mile a day.
我每天游一英里。

A fool acts recklessly while a wit has a foresight.
愚者鲁莽从事, 智者深谋远虑。

He got a divorce a while ago.
他不久前离婚了。

Drop me a line once in a while.
有空给我写信。

a gun for discharging a projectile at a whale.
一种用来向鲸发射射弹的枪。