This includes not talking in class unless a student is invited to talk.

这其中包括课上不能随意讲话，除非老师叫到回答问题。

youdao

Unless we have specifically asked you to, do not talk about your company or organization.

除非事先有通知，否则不可谈论你的公司或组织。

youdao

However, people would not normally give this kind of response unless they genuinely wanted to talk about the issue honestly.

但是人们正常情况下是不会给出这样的回答的，除非他们真想如实特对问题此进行讨论。

youdao

Investors did not react strongly to the report, a sign that takeover talk may have run its course unless more evidence is offered.

FORBES: Magazine Article

Politicians keen on a Yes vote found they could not talk up the treaty on their local radio stations unless a No campaigner were found to match them.

ECONOMIST: Ireland

And that unfortunately required some owners to be forced with the possibility of adverse financial consequence unless they at least talk to some potential head coaches they otherwise would not.

FORBES: What's Silently Super About This Bowl? A Tribute To The Rooneys And Tony Dungy