坚实材料 meaning in English
strong material
Examples
- The skeletons of ancient humans ? such as the well - known skeleton of lucy , which dates to about 3 . 2 million years ago ? give us a good idea of the build and the way of life of our ancestors
古人类的骨架是我们想像祖先体型与生活方式的坚实材料，例如著名的露西（她是320万年前的古人类遗骸） 。