Uh, sounds dangerous especially when you exercise in breathe to your mouth. What if my tongue freezes?
听起来很危险，特别是用嘴呼吸时，如果我的舌头结冰的怎么办？
More sounds meant more information could be Shared, giving those who lacked air sacs a better chance of survival in a dangerous world.
声音增多意味着可以分享的信息增多，这使得那些没有气囊的祖先在危险环境里的生存几率大大增加。
That’s not as dangerous as it sounds, running as I was on a deserted side road on a tropical island in the wee morning hours.
其实不像我说的那么危险，就是跑，在凌晨，热带岛屿，废弃的路边。
Older elephants can distinguish normal sounds from dangerous sounds.
老象可以分辨出正常的声音与危险的声音。
"It sounds great, " I ventured without hesitation, all the while feeling as if I'd signed on to cross dangerous borders using false papers.
“听起来很不错，”我毫无犹豫地接受了这个冒险。那一刻的感觉就像我拿着一张假护照却被签字批准通过边境一样。
That's not as dangerous as it sounds, running as I was on a deserted side road on a tropical island in the wee morning hours.
其实不像我说的那么危险，就是跑，在凌晨，热带岛屿，废弃的路边。
Tests then gauged how well the mice learned how to avoid part of a maze that appeared dangerous because of bright lights or loud sounds.
然后通过设计好的迷宫用来测试老鼠们的学习能力和避险能力。
Tests then gauged how well the mice learned how to avoid part of a maze that appeared dangerous because of bright lights or loud sounds.
然后通过设计好的迷宫用来测试老鼠们的学习能力和避险能力。
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