SIGNAL statements will also roll back changes caused within the trigger.
signal语句也将回滚在触发器内发生的更改。
Others have to give a trigger signal or respond automatically to the behavior results.
有些工作还要求系统给出触发信号，或能自动响应生物的行为反应。
Do you need to trigger the cameras via an external signal?
希望通过外部信号触发照相机吗？
Do you need to trigger the cameras via an external signal?
希望通过外部信号触发照相机吗？
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