If you're checking your goods in as hold baggage, then you must show your goods and your refund form to UK customs officials before checking in.

如果你的退税产品都要进行托运，那么你必须在托运前配合海关人员检查以及提交退税表格。

youdao

Next. Hello... Will you be checking any baggage? I'm checking one bag.

下一位。你好…你有行李要托运吗？我有一个包要托运。

youdao

Adhere to guest checking in and checking out procedures pertaining to baggage handling.

在与行李相关的问题上，遵守客人入住和退房工作程序。

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German cellist Alban Gerhardt traveled 22 years checking his cello as baggage in a sturdy case.

WSJ: Frequent-Flier Miles for Cellos, Other Large Musical Instruments Foment Debate--Middle Seat

One way to decrease the amount of time spent checking carry-on baggage would be for airlines to allow more checked baggage without additional fees.

WSJ: Alice Hoagland: Knives in Airplane Cabins? No Thanks.