严格说来，我们穿越时光之旅的下一站将停留在已有340万年的马卡（Maka）遗址，此地曾出土了南方古猿阿法种（Australopithecus afarensis）的一块颌骨以及其他一些遗骸。

Strictly speaking, our next stop on the walk through time should have been a 3.4-million-year-old site called Maka, which had yielded a jaw and some other remains of Australopithecus afarensis.

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他偶然发现了一个450万年前的有袋动物的颌骨。

He came across the jawbone of a 4.5 million-year-old marsupial.

《柯林斯英汉双解大词典》

1996年，研究小组在此出土了带有石制工具切痕迹象的羚羊骨、马骨和其他哺乳动物的骨骼，其年代要回溯至250万年前，这是古人类有使用工具迹象的最早时期。

In 1996, the team uncovered antelope, horse, and other mammal bones showing the telltale cut marks of stone tools-at 2.5 million years, one of the earliest signs of tool use.

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