Hubble constant
na. 【天】哈勃常数\\n
🧩 词语组成解析
n. 小凸起, 小瘤
🗣️ 情景例句
What's the nature of the problem?
是什么样的问题？
Won't you be embarrassed to leave the party early?
你提早一点离开宴会也无妨吧？
Because of this, we kept looking back, wondering if we were leaving a trail of oil and petrol behind us.
因此，我们不时地掉过头，怀疑车后是否留下了机油和汽油的痕迹。