His face has yet to ring a bell.

他这张脸没引起任何人的印象。

And a paper titled, " Birds of a Feather Video-Flock Together" , researchers described teaching 18 pet parrots to ring a bell.

在一篇题为“鸟类视频”的论文中，研究人员描述了教会18只宠物鹦鹉按铃。

I believe the reading room is still closed, but we're going to a kind of super secret place where you need to ring a bell to get in.

拉蒂夫：我相信阅览室仍然关闭，但我们要去一个超级秘密的地方，你需要按铃才能进去。

Our next story now takes us to Berkeley microbiology lab where we're given a 10 out of 10 to a furry squirrel who learned how to ring a bell to get a treat.

下一个故事将带我们去到伯克利微生物实验室，那里的一只毛茸茸的松鼠将为我们带来今天的“最后一分钟”小故事，因为它学会了如何通过摇铃来获得奖励。

" To ring out" normally means to ring a bell very loudly in order to announce something to a large group of people, to communicate to a large group of people.

“To ring out” 通常是指非常大声地摇铃， 以便向一大群人宣布某事， 与一大群人交流。