Hubble's constant
na. 【天】哈勃常数\\n
🧩 词语组成解析
🗣️ 情景例句
Ellen.
Ellen。
That's the way I look at it, too.
我也是这么想的。
Finding planets is proving hard enough, but finding life on them will prove infinitely more difficult.
寻找行星证明相当困难，但是要在行星上发现生命会变得无比艰难。