但是太阳正如我们在地球上所见，好像举起手臂，看一臂之外的指尖那样大小——对于天文学家来说也就是半度宽。

But the sun, as seen from Earth, is nearly as large as a little fingertip held at arm's length-a size known to astronomers as half a degree wide.

youdao

但是太阳正如我们在地球上所见，好像举起手臂，看一臂之外的指尖那样大小——对于天文学家来说也就是半度宽。

But the sun, as seen from Earth, is nearly as large as a little fingertip held at arm's length-a size known to astronomers as half a degree wide.

youdao