起重机在运转试验中，发现有不正常的磨擦声响。

Abnormal sound of chafing was heard from the crane during running test.

youdao

你如果发现有不正常的事情，应该打电话给警方。

If you see anything unusual you should call the police.

youdao

你如果发现有不正常的事情，应该打电话给警方。

If you see anything unusual you should call the police.

youdao