当她们到达时，他们发现门开着。

As they arrive, they find the door open.

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当他们到达公园时，她们看到了许多的鲜花和草地。

When they arrive the park, they see many beautiful flowers and grass.

youdao

当他们到达公园时，她们看到了许多的鲜花和草地。

When they arrive the park, they see many beautiful flowers and grass.

youdao