An ornithologist is a professional birder with advanced scientific training about not only bird species but also about behavior, anatomy, physiology and bird species history.

鸟类学家是专业的鸟人，他们不止在鸟种方面，在鸟类行为学、解剖学、生理学和鸟种进化史等方面都受过先进专业的科学训练。

youdao

They have advanced beyond the simplistic format of Flappy Bird, to include endless running or complex puzzles.

它们大大地超越了形式简单的《飞扬的小鸟》，加入了无尽头的奔跑和复杂的智力问题。

youdao

RoboBrrd looks soft and cuddly from the outside, but it one rugged and advanced bird on the inside.

FORBES: Robotics Goes Social With RoboBRRD and Erin Kennedy

"It's basically a dynamically balanced skateboard, " said Chris Borroni-Bird, GM's director of advanced technology vehicle concepts.

CNN: The future of cars: Drivers not needed