看！它们在门上。
它们在门里。
Where are the keys? They are in the door.
钥匙在哪儿？它们在门里。
Where are the keys? They are in the door.
钥匙在哪里？在门上。
There are some very valuable things in that house; they should lock the door carefully.
那个屋内有些贵重的东西；他们应该小心把门锁好。
There are some very valuable things in that house; they should lock the door carefully.
那个屋内有些贵重的东西；他们应该小心把门锁好。
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