1、
The ornithologists made Vs with their thumbs and forefingers, measuring angles.
鸟类学家们用大拇指和食指构成V形量测角度.
互联网摘选
2、
3、
But long after the red cockaded woodpeckers had gone to roost , the ornithologists were still there.
可在红冠啄木鸟离去歇着很久之后, 鸟类学家还待着不走.
互联网摘选
4、
5、
In those days, during the 1950s, the big concern of ornithologists in our area was the wild turkey.
在50年代，我们这一地区鸟类学家最关心的是稀有的野火鸡。
互联网摘选
