用过的

If you peer inside a used catalytic converter , nothing looks salvageable , much less valuable .

如果你仔细看看用过的触媒转换器里面，似乎没有什么可以回收利用，也不值钱。

After his death, many of the things he had once used were auctioned.

他死后，他曾经用过的许多物品都被拍卖。

If disposing of used product, take care to protect the environment.

如果处理用过的产品，应注意保护环境。

Thy unused beauty must be tombed with thee

你未用过的美将同你进坟墓

Don't use an very overused/whored font!

不要再去使用那些别人已经用过的字体。

And these are all the condoms you used.

这些是你用过的套套

At a restaurant, be sure to say thank you to your server and bus boy after they have removed any used items.

在餐厅时，当服务人员拿走你们用过的东西时一定要对他们说谢谢，。

A number of different coolants had been employed , including water , carbon dioxide and liquid metals .

用过的冷却剂多种多样，包括水、二氧化碳和液态金属。过去完成时

An unused envelope, postage stamp

未用过的信封、邮票。

A percentage is spent white blood cells, like you'd find in any normal infection.

有一部分是用过的白血球一般感冒也会这样

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。