这很可能因为我所有对象的网格不联系。
This is quite possible since the meshes of all my objects do not touch.
公共汽车因为所有人都在使用而变得缓慢，并且让人感觉不舒适。
Buses can be slow and uncomfortable because all the people are using them.
公共汽车因为所有人都在使用而变得缓慢，并且让人感觉不舒适。
Buses can be slow and uncomfortable because all the people are using them.
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