还要注意有些参与者是系统里的被动对象(存折)。

Also note that some of the participants are passive objects in the system (Passbook).

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请注意有些参与者是自动化的(出纳员)而其他则是真人。

Note that some of the participants are automated (the Teller) and others are real people.

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虽然有些参与者的视频伙伴是沉默的，但他们能非书面地鼓励别人。

The video partner was silent with some participants. But the partner verbally encouraged others.

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