你需要有一辆相当坚固耐用的车子穿越沙漠。
虽然你是这么认为,但是有一项研究显示鸣鸟的骨头实际上是相当坚固的。
Or so you'd think. But a new study shows that songbirds' bones are actually pretty tough.
虽然你是这么认为,但是有一项研究显示鸣鸟的骨头实际上是相当坚固的。
Or so you'd think. But a new study shows that songbirds' bones are actually pretty tough.
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