He fears neither suspicious roads nor dangerous encounters, nor night.
他不怕黑夜,不怕可疑的道路和遭遇。
Recently, researchers found that crows have the ability to recognize individual human faces, allowing them to remember dangerous persons from past encounters.
最近,研究人员发现乌鸦有识别人脸的能力,它们可以记住那些对他们有威胁的人,以区分路过的陌生人。
Problems with physical encounters can be expected and may be potentially dangerous.
身体接触带来的问题是个潜在的危险。
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