Unscrupulous dealers have been known to shove duff stones into the types of collection now being bought by Americans.

已经发现有无耻的经销商们把差的宝石混在好的宝石里卖给美国人。

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An array or collection of serializable types is also serializable.

序列化类型的数组或集合也是序列化的。

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Tuning the collection of reference types is mainly tuning fetch strategy.

对引用类型集合的调优主要是调优获取策略。

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Weekly collections work best for some local authorities, whereas others say alternate weekly collection of different types of waste is the best way to increase recycling.

BBC: Weekly bin collections 'still due for return'

The department has altered its policy on the collection of plastic, allowing most types of packaging to be deposited at the island's bring banks.

BBC: Public Services changes plastic recycling in Guernsey

One of many marketing campaigns among the nominees, the REI 1440 Project is a soothing, crowdsourced collection of travel photos from outdoorsy types around the world.

CNN: Hidden gems of the Webby Award nominees