英语语法分析

Nuclear DNA was successfully extracted from a 13,000-year-old emu eggshell and a giant moa eggshel.

细胞核 DNA 成功地从一只1.3万年前的鸸鹋蛋壳和一只巨大的恐鸟蛋壳中被提取出来了。

Emu is a large Australian flightless bird, similar to the ostrich but with three-toed feet and grey or brown plumage.

鸸鹋是一种大型的澳大利亚不会飞的鸟，类似于鸵鸟，但是有三趾的脚和灰色或棕色的羽毛。

You can take C Intercity EMU or D EMU to travel from Shenzhen to Guangzhou with less time.

你可以乘坐 C 号城际动车组或 D 号动车组从深圳到广州，用时更短。