从他们的脸部表情我晓悟到事情的严重性。
From the expressions on their faces, I realized the gravity of the situation.
这些鸟，有着丰富多彩的鸟嘴和悲哀的表情，来来回回地从海洋到这里猛飞，满口收集的小鱼为他们孵化小鸟做准备。
These birds, with their colorful beaks and doleful expressions, can be seen darting to and from the ocean, gathering mouthfuls of fish for their hatchlings.
从孩子刚刚会打饱嗝时起，我们便开始观察他们的面部表情。
We start by learning what our babies' faces look like when they need to burp.
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