sound什么时候加s

sound表示第三人称单数的时候加s:

sounds

The job sounds really exciting to me .
这工作听来确实叫我感到刺激。

Sound travels through the medium of air .
声音通过空气介质传播。

I aim by sound and i am an expert shot .
我凭着声音瞄准，我是神枪手。

He was doing his best to sound vicious .
他竭力使用一种恶狠狠的腔调。

Everything is satisfactorily arranged on a sound basis .
妥贴稳当。

What an appalling philosophy that sounds !
这看法听上去多么骇人啊！

Your opinons on house-decorating are sound .
你对屋内的装饰很有高见。

The film does not synchronize with sound .
该影片画面与声音不同步。

Her mouth worked and no sound came out .
她嘴哆嗦着，说不出一句话。

Below the sound of revelry continued .
楼下寻欢作乐的声音不断传来。

用cleaned造句

The flat had been meticulously cleaned.

这间公寓被仔仔细细地打扫过了。

The rooms had all been cleaned and aired.

所有的房间都已打扫干净并且通了风。

She cleaned a small segment of the painting.

她擦干净了这幅画的一小部分。

I've had your coat cleaned—it's as good as new now.

你的外套洗好了—像新的一样。

I cleaned the apartment, which left me feeling virtuous.

我打扫了整个公寓，这让我感到自己很了不起。

Natural-filled duvets must be dry-cleaned by a professional.

天然材料填充的羽绒被必须由专业人士干洗。

She meticulously cleaned the gun and locked it away in its case.

她小心翼翼地把那把枪擦干净，并把它锁藏在枪盒里。

Emily couldn't ask a friend for a sleepover until she cleaned her room.

埃米莉直到把房间清理干净了才会叫朋友来过夜。

The wiring and the plumbing were sound but everything else had to be cleaned up.

电路和管道都还行，但其他的都必须清理。